铁 、 镍 、 铜, 银 、 金, 铱或钌,可用作复合催化剂金属.Iron, nickel, copper, silver, gold, iridium , or ruthenium may be included as cocatalyst metals.使用同样方法, 铱被熔合与铑.Using the same approach, iridium is alloyed with rhodium.铱系统与AMPS系统之比较 ( 续 )...
They went clumping up the stairs.他们拖着沉重的脚步走上楼。Men in big construction boots were clumping in and out with plans in their hands.一群男人穿着大建筑靴，手中拿着图纸，噔噔噔地走进走出。Wipe the wand off before the first coat to prevent clumping.把睫毛棒刷干...