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...
Adam stumbles on, leaving a trail of devastation in his wake.亚当蹒跚而行，沿路留下毁坏的痕迹。I vote that you try to pick out the trail for us.我提议由你来选我们该走哪条小路。A small brown fawn hopped across the trail in front of them.一只棕色的小鹿蹦跳着穿过他们面前的...
He skated the length of the rink without stopping.他一下子滑过了整个溜冰场.He skated a figure of 8 in the rink.他在溜冰场上溜了个8字形.He skated a figure of eight in the rink.他在溜冰场上溜了个八字形....
本节只讨论其中的两类: 金属离子钝化剂和过氧化物分解剂.Only two types will be included in present discussion: metal - ion deactivators and peroxide decomposers.向焦炭表面喷洒钝化剂溶液可以改善焦炭热态强度.The hot strength of coke can be improved by spraying passivator ...