Servo-controlled airflow and pivoting flexible medium pressure line.

中央控制的气流和旋转灵活的中等的压力线。

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Residuum suspended bed hydrocracking process at medium pressure was studied by using homogeneous design experimental project.

采用均匀设计实验方案，进行了渣油悬浮床中压加氢裂化工艺研究。

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The valve use medium pressure of its own, control and turn off with a delay function to eliminate or alleviate the water hammer.

利用介质自身的压力，控制并具有延时关闭功能，从而消除或缓解水锤的智能型止回阀。

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However, if consumers start to move from stores to online shopping and expect some form of free shipping, we could see some gross margin pressure in the medium term.

FORBES: Web Shopping Gambit Could Bite Wal-Mart

That kind of offer can put pressure on small and medium-size business owners depending on their business model.

FORBES: How To Offer Free Shipping And Still Make A Profit

First, Amazon must escape the commodity-pricing pressure zone brought on by the very medium, the Web, that made Amazon possible.

FORBES: The Web'S Fog Of War