scale deposit

基本解释

In order to prevent and control efficiently scale deposit, various researches are made by oil companies.
为了防止结垢和有效地控制结垢，各石油公司开展了多方面的研究工作。
The engine uses oil cooling system, so formation of scale deposit, corrosion, etc which are potential troubles can be avoided.
发动机采用油冷系统，可避免水垢、锈蚀等潜在故障的发生。
The radical reason of mechanic seal failure of thermal-oil pump is that the end-temperature of friction couple is over-heat after cooling system has scale deposit.
冷却系统结垢后，摩擦副端面温度过高，这是导致热油泵机械密封失败的根本原因。

To succeed in expanding abroad, banks need scale and a local deposit and customer base.
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The larger deposit base will give the combined company economies of scale and will enable it to compete with JPMorgan Chase and Bank of America with a "nationwide banking presence, " he says.
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