介绍了国内外甘油法环氧氯丙烷生产技术.The worldwide production processes of epoxy chloropropane from glycerol are introduced.在同样的聚合反应条件下, 环氧氯丙烷聚合反应速度大于环氧丙烷聚合反应速度.Under the same conditions, propylene oxide polymerization proceeded fasfer th...
Objective To evaluate sanitary effects on attic type composting latrine.目的评价阁楼式堆肥厕所无害化效果.When I was traveling in Kenya last time, a friend of mine a latrine like that.上次在肯尼亚履行, 我的一位朋友要上厕所.The shelters with latrine facili...
They are naturally good salesmen with the gift of the gab.他们天生就是能说会道的推销能手。The young cheap - Jack had got the gift of gab.那个年轻小贩能说会道.She has the gift of the gab.她口才很好....
They had been forced to uproot their vines and plant wheat.他们已被迫将葡萄藤连根拔除，改种小麦。Essentially, vines and grapes need water, heat and light.最基本的是，葡萄藤和葡萄需要水、热和光。Vines spiraled upward toward the roof.藤蔓盘旋着朝屋顶方向生长。...