Hydel power projects, with storage facilities, provide peak time support to the power system.
具有蓄水能力的水力发电项目可以对系统提供峰期支撑。
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Using a specially designed system of hydraulics, Belzoni organised hundreds of workmen to pull the bust on wooden rollers, by ropes, to the banks of the Nile, almost exactly the method used to bring it there in the first place.
贝尔佐尼曾是马戏团里的大力士,后改行做了古董商。他使用了一套设计独特的水力系统,组织了数百工人,用木制滚轮与绳索将雕像运到了尼罗河岸。这几乎与当年雕像被运到拉美西斯神殿所用的法完全一致。
But there's a shortage of sand available for construction, for manufacturing and for some processes like fracking for oil and gas, partly because all those processes need a certain quality of sand that you can't find everywhere.
但是用于建筑、制造业
及石油和
然气的水力压裂等某些过程的沙子短缺,部分原因是这些过程都需要一定质量的沙子,这是你在任何地方都找不到的。