两人都戴着安全帽和护耳垫.Both men were wearing hard hats and protective ear pads.两个研究人员记录了两个纺织工人戴了 护耳器 的结果.Two researchers recorded the results of the wearing of ear - defenders by two weavers.带护耳的棉帽可在冬季使用.A fur cap with earflaps is...
已经得了婚礼紧张症了!You've got the wedding - day jitters!这种经前期紧张症和月经期不适通常能够用药物缓解.Such premenstrual tension as well as menstrual discomfort can often be alleviated by medication....
Plackett - Burman experiment shows that wheat bran, syrup and KH 2 PO 4 have noticeable effect on the aminopeptidase productivity.Plackett -Burman实验 表明培养基中麸皮 、 果葡糖浆、KH2PO4三种组分是影响发酵产酶的显著因素.The important fators which affec...
We lived on the breadline to get our son through college.为了供儿子读完大学，我们生活非常拮据。Most of the unemployed in this area are on the breadline.这一地区的失业人口大多数都十分贫困.The widow and her children are on the breadline.这个寡妇和她的孩子们日子过得很苦,仅能维持...
饮用水;挥发性卤代烃;氯仿;四氯化碳.Study on the levels of volatile halogenerated hydrocarbon in drinking Linyi City.摘要研究了碳酸铯催化酚与卤代烃反应制备烷基芳醚.Cesium carbonate catalyzed O - alkylation of phenol to synthesize alkly aryl ethers.此外, 芳基硼酸与卤代烃...
Till I come , give attendance to reading , to exhortation, to doctrine.13你要以宣读, 劝勉,教导为念, 直等到我来.an exhortation to do better劝勉He accompany me, however, not lose one moment in continuing his exhortation.他陪著我, 然而不失时机地继续他对我的的...