您要查找的是不是：
- corrosion free pump 耐蚀泵
- The file hard (60RC) high strength aluminum alloy tube provides a smooth corrosion free sealing surface and excellent abrasion resistance. 文件的硬（60RC）高强度铝合金管提供了一个平稳无腐蚀密封面和良好的耐磨性。
- MFC GAS Feedthrough Numbers? Mass O2 needed? (It means: Protection against Reoxidation needed. Oil Free Pump needed. High speed and ultra-high vacuum Pump needed. 流量控制器气体通道种类、数量？是否需要大量氧气？(是否意味着：因为要防止二次氧化而需要无油真空泵和高速、超高真空泵。
- Study on alkali corrosion free cement 无碱害水泥的研究
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- Clean off any corrosion before applying the paint. 先除去所有的锈迹再上油漆。
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
- Jon sent away for a free almanac. 乔写信去要一份免费赠阅的年历。
- Now that I am free, I can enjoy music for a while. 既然有空，我可以享受一下音乐。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
- He closed the deal successfully and was home free. 买卖成交了，他松了一口气。
- He is free with his advice to his pupils. 他直言无隐地向学生提出忠告。
- He is given a free ticket to the exhibition. 有人给他一张免费参观展览的票。
- He was inclined to give them a free hand. 他倾向于放手让他们干。
- She's made free with my records during my absence. 我不在时她擅自用我的磁带。
- We'll eat at whichever restaurant has a free table. 哪个饭馆有空桌我们就在哪儿吃吧。
- The politician cops out on the issue of free trade. 那政客对自由贸易的问题只是一味逃避。
- The corrosion inhibition rate of the product was determined by the comprison between static and dynamic experiment on corro... 试验结果表明产品羧基含量较高,阻垢效果良好。
