铬镀后常常是通过磨削及研磨来达到尺寸.Frequently chromium deposits are ground or lapped to size.最普通的精加工工序是用机械的方法, 如研磨, 磨削或用磨料抛光.The most common finishing operations are mechanical, such as milling, grinding, or polishing with abrasives.成形法...
我在一棵快要枯死的榆树的树洞里安了家。I made my home there, in the hollow of a dying elm.一排雄伟壮观的榆树a line of stately elms枯死的榆树已被移去而换栽了一排幼树.The dead elms have been replaced by a row of saplings....
His voice sounded oddly resonant in the empty room.他的声音在这空荡荡的房间里听起来异常嘹亮。The strong dark eyebrows give his face an oddly menacing look.两道浓黑的眉毛使他的脸看起来异常凶狠。There were, oddly, few other Britons living in this northern part.说...