常見例句雙語例句The necessity of tungsten totals' control are discussed in this paper, strictly control the totals combining productive ration with limiting the quantity of export and ascertaining responsibility.論述了鎢的縂量控制勢在必行。提出嚴格控制縂量，必須配額生産、限額出口、落實責任。 返回 ration export