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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It tryes to design double arc gear transmission of the best technology and economy effect making the best of speed, simpleness and understandability and feasible method.

试图用尽可能快的速度、单、懂、行的方法设计出技术经济效果最佳的双圆弧齿轮传动。

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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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"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