The technology of vacuum aluminizing casting polypropylene ( CPP ) film and its applications to packaging were discussed.简要论述了真空镀铝流延聚丙烯 ( CPP ) 膜的生产工艺及其在包装上的应用.The RE - aluminizing technique and coating structure of gas ...
Molluscicides are quickly inactivated by sunlight and adsorption to mud organic matter.灭螺剂因阳光作用、泥土及有机物质的吸收会很快失效.These product components tend to be heat sensitive and are easily inactivated.这种成分往往是热敏性的且容易灭活.However, thes...
Keep one as a master copy for your own reference and circulate the others.一盘留作母带自用，其余的都分发出去。The frozen snow was so slippery that it was hard to keep one's feet.冰雪溜滑,人们很难站稳.It is difficult to keep one's balance ...