From the researcher's experience, a number of collaborations among teachers are met.笔者的研究经历来说, 对学校实践层面,接触的教师合作现象,也比较多.In the most successful collaborations , both co - authorsfrom the experience.在绝大部分的成功合作中, 双方都可以从中...
Some Cu - Al structures used in thermal exchangers may lead to galvanic corrosion.铜铝结构热交换器存在着电偶腐蚀的倾向.The actue toxic effect of heavy metal Cu ~ ( 2 + ) to Stentor Polymorphrus ( Ciliophora, Heterotrichida ) was studied.研...