这一年随后的三次股票期权授予也维持了该执行价。
It maintained that price in three subsequent grants that year.
铜价可能维持高位，因为缺乏较好的替代品。
Copper prices are also likely to stay high because of the lack of good substitutes.
“我们尽可能以已最快速度回复每个询价，”丹尼说，在维持与遥远的外国密切的通信方面，美国好施集团的传真机扮演着非常重要的角色。
"We try to answer every inquiry as soon as possible," says Dan, who adds that Hirsch's fax machine plays a crucial role in maintaining close communications with distant lands.
通过维持隔膜袋里混合溶液小的静压头，避免含有三价铁离子的阳极液扩散进入阴极室。
Diffusion of anolyte containing ferric ion into the cathode compartment is avoided by maintaining a small hydrostatic head of the mixed solution in the diaphragm-bag.
通过维持隔膜袋里混合溶液小的静压头，避免含有三价铁离子的阳极液扩散进入阴极室。
Diffusion of anolyte containing ferric ion into the cathode compartment is avoided by maintaining a small hydrostatic head of the mixed solution in the diaphragm-bag.
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