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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Double circuit transmission line is widely adopted in China owing to the demand of large-capacity power transmission.

由于大容量输电的需要，双回线路在国内广泛采用。

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AW series of large diameter valves using pneumatic actuator fork-type transmission, reasonable structure, output torque, a double-acting and single acting.

大口径阀门采用系列aw型气动执行器拔叉式传动，结构合理，输出扭矩大，有双作用式和单作用式。

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Bentley has given the GT Coupe its famous 6-liter, 12-cylinder engine but teased out more power than before (567 bhp and 516 lb-ft of torque) and added a new Quickshift transmission that allows double downshifting.

FORBES: Bentley Unveils New Continental GT Coupe

The data-transmission rate will also double (each channel now carries only 64 kilobits a second, which accounts for the jerky pictures that the system produces).

ECONOMIST: Technological advances are liberating news reporting

Even under heavy throttle, the upshifts are creamy-smooth, and when the GL350 reaches highway speeds, the transmission slips into a nearly catatonic double overdrive.

WSJ: 2013 Mercedes-Benz GL350 BlueTec Review: A Quiet-Tuned Land Megayacht | Rumble Seat by Dan Neil