来源:西部网

A visitor learns about topological softgel, a new material which can be applied in textiles, at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Sun Weitong)

A visitor learns about the process flow of kitchen waste treatment plant at the environmental services exhibition during the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Li Xin)

Visitors look at a sandbox model of 'smart city' solution at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Li Xin)

A trader learns about clothing products made of new materials at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Sun Weitong)

A visitor takes photos of a bicycle made of bamboo at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Li Xin)

Visitors try mouse and keyboard made of bamboo at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Li Xin)

Visitors learn about various bike sharing service solutions at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Li Xin)

Traders learns about bamboo winding composite pipes at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Li Xin)

This photo taken on Sept. 2, 2023 shows an urban energy-themed exhibition booth at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Zhang Chenlin)

This photo taken on Sept. 2, 2023 shows the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Ren Chao)

New energy vehicles are exhibited at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Zhang Chenlin)

An acid and alkali resistant overall is exhibited at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Ren Chao)

A visitor views a future city-themed exhibition booth at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Zhang Chenlin)

Visitors view an L4-level auto-pilot truck at the environmental services exhibition of the 2023 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 2, 2023. Themed 'Opening-up leads development, cooperation delivers the future,' the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. The green and low-carbon drive is a major feature of the event, which has several related themed forums and exhibitions of cutting-edge green services, technologies, and business models. (Xinhua/Zhang Chenlin)

来源：Xinhua