Surface temperature on gear teeth was measured by dynamic thermocouple method. A test gear construction consisting of three pieces and electric resistance was designed.

用动态热电偶法测量齿面闪温分布，设计制造可测出全齿面闪温的三片组合带电阻式齿轮结构。

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Current "muxes" typically can push up to 100 light waves down a single fiber, but by year-end Nortel will begin shipping test gear that pushes 160 lightwaves, each carrying 10 billion bits of data per second.

FORBES: Hooked on Photonics

Current "muxes" typically can push up to 100 light waves down a single fiber, but by year-end Nortel will begin shipping test gear that pushes 160 lightwaves, each carrying 10 billion bits of data a second.

FORBES: Hooked on photonics

Similarly, the origins of the microwave oven (an offshoot of radar), the folding baby buggy (the brainchild of a test-pilot inspired by aircraft landing gear) and traffic lights (one of the first of which exploded outside the Houses of Parliament) are not widely known.

ECONOMIST: Encapsulating a century in gadgets