探讨了稀土化合物用作环保汽油抗爆剂的可能性.Capabilities using rare earth compounds as environmentally friendly gasoline antiknocks were explored.介绍了MMT抗爆剂在中国石油锦西石化公司的使用情况.The article introduces the application status of MMT antiknock additiv...
Obviously, they know the difference between fluorite and ED.显然, 这些生产商们知道ED与萤石之间的差别.The seeming disorder of calcite highlights the geometric precision of fluorite.矿物质图片画廊.外观紊乱的方解石突出几何精确度的萤石.The cerium oxide preferably has...
Success is not guaranteed. It is not handed to you. Success is earned.成功无法保证，并非唾手可得。成功必须靠自己去争取。Success is not final, failure is not fatal: it is the courage to continue that counts.--Winston Churchill成功不是终点，失败也并非末日，最重要的是...
法辛巷刚好在大街的北面，与大街平行。Farthing Lane's just above the High Street and parallel with it.道路与运河平行。The road and the canal are parallel to each other.这条公路与那条铁路平行.The highway runs parallel with the railway....
One pandemic of Spanish flu took nearly 22 million lives worldwide.西班牙流感的大爆发夺去了全球近2,200万人的生命。They feared a new cholera pandemic.他们担心新一轮的霍乱大流行。In some parts of the world malaria is still pandemic.在世界上一些地区疟疾仍然具有高传染性。...
I have lost dispiritedly, brokenhearted, but all also have what use?我失落过、颓废过 、 心碎过, 但一切又有何用 呢 ?I hate to see those who work dispiritedly.我讨厌见到工作时没精打采的人....
Glass reinforced high performance polyamide resin, with a non - halogenated flame retardant.%玻璃纤维增强高性能聚酰胺树脂, 以 非 卤化阻燃剂.The most widely used halogenated compounds are chlorine ( in the form of sodium hypochlorite ) and io...