预防原则（preventive principle），主要指环境政策法规不仅是抗拒对环境具有威胁性的的危害及排除已产生的破坏，更是在一定危险性产生之前就预先去防止其对环境及...
基于16个网页-相关网页
In these controversies, there are four hot issues, which are, "non?target organisms harmed", "concept of substantial equivalence", "need transgenic foods carry a label?"and "preventive principle".
在这些争论中“非目标生物伤害”、“实质等同性”、“转基因食品要不要贴标签?”“和”预防性原则”成为热门话题。
This article briefly discusses the basic principle and method of machine condition monitoring, preventive maintenance and vibration diagnosis based on the vibration testing and analysis.
对以振动测试和分析为基础的机器状态监测、预防性维修及振动诊断的基本原理和方法作了简要论述。
This article analyses process principle of mp absorber after revamping, and presents the preventive measures for control of mp absorber temperature during its startup.
通过对中压吸收塔改造后的工艺原理分析，提出在开车过程中中压吸收塔温度控制的预防措施。
应用推荐