• 建立了精密播种机接输种管田间植株分布动态模型

    A dynamic field plant distribution model with the seed drop tube is established in this paper.

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  • 悬索式管桥管道跨越常用形式,其结构主要抗风索、塔基锚固系统式管桥等部分组成。

    Suspension pipe bridge is a kind of common structural form consisted mainly of main cable wind cable tower foundation anchor system and girder form pipe bridge.

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  • 技术油气一种常用的用来清除管道内杂质以及排空管道内存有效办法

    Passing ball cleaning pipe technique is a very effective method to clean up the impurity, wax and filthy and to exclude the existing liquid in oil gas transmission pipe.

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  • 前两排沙方式已经广泛应用于工程实践中,螺旋排沙是近年提出一种节能、高效沙方式,目前还处于试验研究阶段。

    The spiral flow in the horizontal pipe can generate the spiral flow to transport sediment according to the way of equipping the guide blade in the middle of the pipe.

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  • 前两排沙方式已经广泛应用于工程实践中,螺旋排沙是近年提出一种节能、高效沙方式,目前还处于试验研究阶段。

    The spiral flow in the horizontal pipe can generate the spiral flow to transport sediment according to the way of equipping the guide blade in the middle of the pipe.

    youdao

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