• Ball valve fully open, the flow resistance is very small, almost zero, so the ball valve diameter is widely used in petroleum and natural gas pipelines because the pipeline cleaning easy.

    球阀在完全开启时很小几乎等于零因此等球阀广泛应用于石油天然气管线中,因为容易清扫管线

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  • This resistance is normally very small, ranging from micro-ohms to a few ohms.

    接触电阻一般非常范围欧姆几个欧姆之间。

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  • Together, under various environmental conditions can also insist on the function of policy, that plank of wicked weather resistance, temperature influence is very small.

    一同各种环境条件下坚持各项功用政策的安稳,说明板材有超卓耐候性,受温度影响很小。

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  • While in the third stage, the flat temperature curve of the electrical resistance indicates that the structural change of metallic glasses is very small.

    第三阶段中,电阻温度曲线上表现一个平台,表明晶化前晶合金结构变化很小。

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  • While in the third stage, the flat temperature curve of the electrical resistance indicates that the structural change of metallic glasses is very small.

    第三阶段中,电阻温度曲线上表现一个平台,表明晶化前晶合金结构变化很小。

    youdao

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