Tissue cells and bacteria are semi - transparent - light penetrating through cells causes shadings and reveals texture.组织细胞和细菌是半透明的,所以光能透过细胞,投下阴影并显出内部结构.Tissue cells and bacteria are semilight penetrating through cells c...
Excessive crying may cause aerophagia, which results in flatulence and abdominal distention.过度哭闹会引起吞气症, 导致气胀和腹胀.Bethanechol is of value in certain cases of postoperative abdominal distention and gastric atony or stasis.氨...
4钻工钻井队有机械师 吗 ?Are there machinists in the oil - drilling group?钻工用合适的丝扣油涂抹接头母扣.The Floormen apply proper pipe dope into the thread box of the pipe joint.操作大钳时,必须教导钻工把手放在正确位置.The Floormen be instructed on proper placement...