变动水位泵型组合的优选 关键词 最佳抽水功率 抽水量 水位变幅 能耗 [gap=398]Key words optimal pumping power; pump discharge; range of stage; power consume
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Under the theme of "Lovely Cities, Wonderful Childhood", 48 children's groups are bringing a range of performances to the Shanghai stage.
在“美好城市璀璨童年”的主题下,48个儿童艺术团给上海舞台带来了一系列表演。
Fortunately, the number and range of stories one can appreciate grow with cultivation; but it is the part of wisdom not to step outside the range at any stage of its growth.
幸运的是,一个人能欣赏多少故事以及哪些故事题材是可以通过培养来得到提高的。不过请不要在自己能力还未达到的题材范围内跃跃欲试。
Rio was "pursuing a range of options, some of which are at an advanced stage" that would help create shareholder value and improve capital structure, it said in a London stock exchange announcement.
力拓在伦敦证券交易所发表的声明中说,它正在“寻求广泛的选择,其中一些趋于成熟”,那将有助于创造股东价值并改善资本结构。
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