hard-zinc

基本解釋

The applications of vacuum metallurgical technology in the recovery of secondary zinc-based resources are presented,including hot galvanizing scrap and hard zinc.
本文介紹了真空冶金技術在熱鍍鋅渣、硬鋅以及其他鋅基二次資源再生中的應用情況。
Practice of energy saving in hard zinc distillation
硬鋅真空蒸餾節(jié)能實踐
It is hard to sleep without a cooler in this room.
沒有空氣調節(jié)器，在這間屋里很難入睡。
John felt it hard to rig out his family.
約翰感到難以為一家大小置備衣著。
The hard core in the party make all the decisions.
這個黨的核心成員決定一切。