Connect the water pump, make sure that the water flow is smooth without leakage.

接通水泵，确保水流通畅，并无渗漏现象。

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Control factor is enter quantity of water body in sunshine, and water body flow is smooth.

然而控制因子在阳光进入水体的量，和水体的是否流动顺畅。

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Cash is the business of "blood", whether the blood flow is smooth and the quality of the blood is good determines a company's vitality.

现金是企业经营中的“血液”，血液流通是否通畅，血液质量是否良好决定着一个企业的生命力。

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The main issue is that it relies on drivers themselves sticking to the new limit to smooth traffic flow.

BBC: Will a borough-wide 20mph speed limit work?

Inside the plastic case is a non-toxic aluminum powder, mixed in with some plastic beads to keep the powder flow smooth and consistent.

FORBES: How Does An Etch A Sketch Work, Anyway?