Granite as raw material, PSA is made in a series of aggregate reactions of chemical fusibility.选用花岗闪长岩为原料, 通过一系列的化学熔融聚合反应制成新型絮凝剂———聚硅酸铁铝盐絮凝剂.Its petrology , petrochemistry and geochemistry feature show the intrusive is p...
Here the Nile broadens out between the huge granite boulders.尼罗河在此处变宽，从两块花岗岩巨石间穿过。"Well," I said, grinding my cigarette nervously into the granite step.“好吧，”我边说边紧张不安地把香烟在花岗岩台阶上捻灭。The towers are made of steel cased in gra...
She could not see herself in the role of ministering angel .她想象不出自己成为一名救死扶伤的天使会是什么样。" Do you indeed, my ministering angel?" 你真的想回去了, 我的救护天使?His days are spent travelling by boat ministering to his parish.他的日子是在来回划船去管理教区中...
Lubrication reduces noise and wear.润滑作用能减少噪音和磨损.We shall require more lubrication oil this month.这个月我们需要更多润滑油.Sludge can also clog oil passages and prevent normal engine lubrication.油泥还会阻塞油路,妨碍发动机的正常润滑工作....
The president beat his breast and called that deal a mistake.总裁捶胸顿足，称那是个错误的交易。This was a genuine mistake, but it did cause me some worry.这是好心办错事，可是确实让我担心了一阵子。What women mistake as thoughtlessness is often just diffidence...
超过的部分,应当办理再保险.The part in excess the amount shall be re - insured.主要考虑一类带红利的比例再保险盈余模型.A class of proportional reinsurance surplus model with dividend process is investigated.请指出重复保险 、 原保险 、 再保险的关系?Point out the concern t...
我军收复了该城, 但为此付出了沉重的代价.Our troops recaptured the city, but they paid a heavy price for it.司令员决定,夜晚之前进军收复失去的阵地.The general resolved on an approach by night recapture the lost ground.我简短地提到了关于收复失地的理论.I paid lip service to th...