Barium as barite ( barium sulfate ) is used industrially as a white pigment for paint.钡以重晶石形态 ( 硫酸钡 ) 在工业上用作油漆的白色涂料.Red carneol and barite etc. have the features of plume rocks.红碧玉、重晶石等具有喷流岩的特征.At least 80 tons Barite sh...
Freedom, gravity, ego, and electron are constructs.自由, 万有引力, 自我中心以及电子都是概念.As the flimsy constructs soared, the men paid out twine until the kites reached three or four thousand feet.随着这轻薄的东西向上飞升，这些人慢慢放出细绳，直到风筝飞到三四千英尺高。Wh...
大多数海洋腹足纲软体动物在某些幼体阶段形成一种有纤毛的游泳器官。Most marine gastropod mollusks develop a ciliate swimming organ in certain larval stages.我那不怕疲劳的小纤毛每秒钟约做10次清扫动作.My tireless little cilia make about ten sweeping strokes a second.健康的皮肤, 粘膜...