chemical stress 难道是“化学应力”?这个术语是怎么定义的?Chemical stress 来自什么?可否举一个例子?

chemical stress 难道是“化学应力”?这个术语是怎么定义的?Chemical stress 来自什么?可否举一个例子? 是on stress还是under stress? chemical change是“化学反应”吗? chemical是化学物质还是化学反应? 化工陶瓷的翻译是chemical ceramic 还是 chemical ceramics stress 是 under a big stress 还是 under big stress? chemical是可数名词还是不可数名词? chemical bolt和chemical 最近的研究成果表明,压力、抽烟、缺乏锻炼是导致心脏病的主要原因Recent researches have shown that stress,smoking and lack of exercise are the main factors causing heart disease.难道必须这样翻 必须用现在完成时 化学测验是chemistry test还是chemical test 是a chemistry change 还是a chemical change journal of the korean chemical society是sci吗 world journal of biological chemical 是SCI吗 chemicals是农药吗?还是chemical?可数还是不可数 chemical dependency是啥意思?原句如下：Use of drugs may be a sign of chemical dependency. chemical是什么意思 chemical-free