长江
- “长江十年禁渔期”保护水中物种
《中华人民共和国长江保护法》开始实施，并开始实行为期十年的长江禁渔计划，这对整个长江流域生态恢复具有重大意义。如今“长江大保护”已经成为共识，也许未来，我们会看到越来越繁荣的长江生态。针对严峻的环保形势，把修复长江生态环境摆在压倒性位置，实施以“共抓大保护、不搞大开发”为核心理念的“长江大保护”逐渐成为各界共识，国家推行长江大保护的坚定决心充分彰显。长江白鲟没能赶上“长江十年禁渔期”的良辰。“长江十年禁渔”只是一个开始，在未来的日子里，我们能否通过自身力量
方圆 2022年15期2022-09-08
- REVIEW ON MATHEMATICAL ANALYSIS OF SOME TWO-PHASE FLOW MODELS∗
ng ZHU(朱长江)†1.School of Mathematics,South China University of Technology,Guangzhou 510641,China2.School of Mathematics and Center for Nonlinear Studies,Northwest University,Xi’an 710127,ChinaE-mail:mahywen@scut.edu.cn;leiyao@nwu.e
- A Two-step Design Method for Shaft Work Targeting on Low-temperature Process*
jiang (孙长江)and YUAN Xigang (袁希钢)School of Chemical Engineering and Technology, Tianjin University, Tianjin 30007, ChinaBeijing Risun Chemical Technologies Institute Company Limited, Beijing 00070, ChinaA Two-step Design Method for