The map is pinned down to the table.那张地图被钉在桌子上。The policeman pinned his arms behind him.警察把他的双臂按在背后。Pairs of socks are pinned together.成双的袜子是别在一起的。In an effort to look older she has pinned her fair hair into a French ple...
当脱硫剂累计饱和硫容达20%时,可用于生产硫酸.It was useful forH 2 SO 4 production when the accumulative saturationS capacity reached 20 %.目前使用氧化钙复合的镁基脱硫剂较为合理.It is rational to use complex desulphurization agent for pretreating hot metal.用途: ...
I never got a satisfactory answer.我从未得到令我满意的答复。Theirs had been a happy and satisfactory marriage.他们的婚姻曾经一直幸福美满。It seemed a very satisfactory arrangement.这似乎是个非常令人满意的安排。...