题目内容

The material first used was copper for the reason that it is easily obtained in its pure state.最先使用的材料是铜，因为纯铜易于制取。

查看答案

搜索结果不匹配？点我反馈

更多问题

This kind of plane cannot be built unless we find a metal even lighter than this high-strength aluminum alloy.我们不可能造出这种飞机来，除非我们找到一种比这种高强度的铝合金更轻的金属。

政策上不搞“一刀切”。We should not impose uniformity on the implementation of the policies.

如果河水推动了涡轮机，那就完成了所有必要的工作，不再需要任何燃料了。If a river turns the turbines, it does all the necessary work, and no fuel is needed.

地铁三号线是广州市十五计划中很重要的工程之一。Number 3 subway is one of the very important projects in the fifteenth plan in Guangzhou.