MSDS实际上是一份全面的技术性说明书，侧重于危害提示和安全操作指引，MSDS提供化学品的理化参数、燃爆性能、对健康的危害、安全使用贮存、泄漏处置、急救措施以及有关的法律法规等十六项内容，主要包含如下16项内容:Section 1:Chemical Product and Company Identification——化学品及企业标识。Section 2:Information on Hazardous Ingredients——成分信息。
403，“applicable”，“adj 生效的，适合的=appropriate=relevant【例】The new law is applicable to from next year 新的法律明年起生效。
1105，“cardinal”，“adj 最重要的=paramount【例】This is a matter of cardinal significance 这是最重要的事。Car车，reen=preen梳头:一边开车，一边梳头，想不开斜了都困难。
A technologist is a specialist in technology， while a technician is an expert in techniques of a particular art， etc.
We should concentrate all our efforts _ improving education.We often take some ______ food with us when we go hiking.
