Now generally used PTEE, EPDM and other material for the valve seat, so bubbles leakproofness good.现一般均使用PTEE 、 EPDM等材料,为阀座, 因此,气泡密封性佳.Especially in automobile industry, the leakproofness of cylinder influences the perfo...
high density lipoprotein高密度脂蛋白The relation between high - density - lipoprotein cholesterol and ischemic cerebrovascular disease: a clinical study.缺血性脑血管病与高密度脂蛋白关系的临床研究.very high density lipoprotein极高密度脂蛋白serum lipoprote...
Tears were flowing over his florid face.他通红的脸上淌着眼泪。When she learned the sad news, she found it hard to choke back her tears.当她得知那个悲痛的消息时, 泪水止不住夺眶而出.Maria's eyes filled with tears.玛丽亚的眼中噙满了泪水。He had to fight back tea...
We’re not unduly worried.我们并不过分担心。Automatic code generation is used to provide the high - level abstractions without unduly burdening application programmers.使用了自动代码生成以减少应用编程人员的负担.To enlarge or amplify unduly or improper...