The double gear cable measuring instrument is a special equipment which is essential for logging system.

双轮电缆测量仪是油田测井系统不可缺少的专用设备。

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The load assignment formula and the method of the double circular arc gear under the wiring error influence between the contact mark was introduced and inferred.

介绍并推导双圆弧齿轮在安装误差影响下接触迹间载荷分配的计算公式和方法。

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This paper brings out feasibility and applicability to make change drive of double step sliding gear by moving one gear width along axis under conditions of Corresponding ratio of gear.

本文阐述了双联滑移齿轮在适当传动出情况下，轴向移动一个齿轮宽度就可以进行变速的可行性及适用场合。

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"That was the better of my double hundreds from a psychological perspective because I never really got out of third gear, " he says.

BBC: Ed Smith