国产高清精品免费区-男女一进一出抽搐免费视频-中日韩一二三级黄色永久视频-日韩精品人妻一区二区免费视频-日本久久视频在线观看-99热这里只有精品88热-亚洲韩国黄色最新短视频一区-日韩伦理在线观看免费全集-国产av一区二区三区天堂

trifluoro

trifluoro

 英

  • 網(wǎng)絡(luò)三氟;三氟醚

例句

This paper reviewed the normal processes of synthesizing 2, 3-dichloro-5-trifluoro- methyl pyridine, and valued each process.

綜述2,3--5-甲基吡啶常用合成路線合成路線比較評價(jià)

Research of Ethylene-trifluoro chloroethylene Copolymer Powder Resin and Coatings

乙烯-乙烯共聚粉末樹脂涂料研究

Discussing the application and design of trifluoro methane fire extinguishing system

甲烷滅火系統(tǒng)應(yīng)用設(shè)計(jì)

The method of calculation for frictional loss of heptafluoropropane and trifluoro methane pipelines

丙烷甲烷阻力損失計(jì)算方法