By overturning the ban, Obama may trigger a brain drain back to the US.

随着禁令的解除，奥巴马很可能激发外流人才重新回到美国。

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Leakage losses is the liquid from the high voltage at low drain back to the premises caused by power loss.

泄漏损失是指液体从高压处漏回低压处所造成的功率损失。

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After turning off the engine, wait for at least 5 minutes for the oil to drain back into the bottom of the engine.

在发动机熄火后，为了让机油流回发动机底部，至少要等5分钟。

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Officers, who had been investigating reports of drain covers being stolen in the area, stopped the van, being driven by Leith, and found nearly 20 drain covers in the back.

BBC: Worcestershire and Solihull drain cover thief jailed

In a soft-spoken but fiercely candid way, he talks about the city's seemingly insurmountable problems--high crime and unemployment, miserable schools, government cronyism, urban blight, a continuing brain drain, relentless push-back against painful cuts and, above all, the debt, the mountainous debt.

FORBES: Magazine Article

He had gone missing on Tuesday and was eventually coaxed back out of the drain by the sound of his owner's voice.

BBC: Port William cat rescued from drain pipes