Shrinkage and dispersed shrinkage are the special waster of ductile iron.缩孔和缩松是球墨铸铁特有的废品现象.The metallocene is summarized as strata, lithology, structure, and especially brittle - ductile shear zone.该区金矿的控矿条件为地层岩性和构造, 特别是...

n.分位数[值]，分位点...

antilecithinase的音标：antilecithinase的英式发音音标为：[əntaɪle'saɪðaɪnəz]antilecithinase的美式发音音标为：[əntaɪle'saɪðaɪnəz]...

Many people were dependent for their water supply on this pestilential stream.许多人靠这条水质受污、可致疫病的河流来取水。As Jefferson said, cities are pestilential to the morals , the health, and the liberties of man.如杰斐逊所言, 城市“毒害了人类的精神 、 体和...

Mammals arose from a fairly primitive reptile in the Mesozoic era.哺乳类起源于中生代宛若原始的爬虫类.They attracted the attention of every bird within eyeshot, every reptile not yet asleep.它们就把所有目力见得着的鸟儿,和所有还没入蛰的爬虫, 都引得注意起来.A crocodilian...