Lysozyme is an enzyme found in egg white, tears, and other secretions.溶菌酶是存在于卵白 、 泪和其他分泌物中的一种酶.The tears also contain a potent microbe - killer called lysozyme, which guards me from infective bacteria.眼泪里还包含一种叫做溶菌酶的高效力杀菌...
The water level of the Mississippi River is already 6.5 feet below normal.密西西比河的水位已经比正常值低了6.5英尺。Oil leaking from a barge in the Mississippi River poses a hazard to the drinking water of New Orleans.密西西比河上驳船漏油事件危及新奥尔良市的饮用...
挖槽法一般包括工地清理 、 路面钻破 、 挖掘及铺设电缆工作.Trenching method generally involves site clearance, road surface breaking, excavation and then followed by cable installation....