The sulfide assemlage consists largely of pyrrhotite, pentlandite, chalcopyrite, and pyrite.硫化物集体大部由磁黄铁矿 、 镍黄铁矿 、 黄铜矿及黄铁矿组成.The hydrogen sulfide is often blamed for the corrosion.硫化氢常常引起腐蚀.Lithopone: B 301 lithopone: whi...
Coccidiostats are routinely used in broiler feeds every day.抗球虫药物每天均用于肉用仔鸡饲料中.Develop practical methodologies for diagnosis of ALV - J related field problems in broiler flocks.开发ALV -J 相关领域问题诊断的实用方法学在烤焙用具群.After she put ...
He collapsed following a vigorous exercise session at his home.在家剧烈运动了一阵后他突然昏倒了。He plunged 300ft to the ground when his parachute collapsed.降落伞突然瘪了，他从300英尺的高空跌落到地面。The film company collapsed, leaving Chris jobless and mi...