The engine is running idle.

发动机在空转着。

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Due to high speed, high viscosity pump inside the rotor is barely formed when running idle, surrounding medium by sliding, cause not feeding, or flow rate is small.

由于转速过高，使高粘度泵在运转时内部转子几乎只是形成了空转，围绕所输送介质打滑，造成吸不上料，或者是流量很小。

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Reduction of energy losses in hydraulic circulation of a hydraulic machine when its running idle can be brorght about by lowering the no-load circulatory flow rate.

降低液压机空载时液压系统中大部分能量损失可通过减小空载环流流量的途径实现。

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Mr Spitzer, never one to be idle, is off to a running start.

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Heavy HDD use gave us 40dB, while accessing HDD and spinning up a Blu-ray took this to a deafening 50dBA. Luckily, once a disc was loaded and running, sounds from the drive ceased almost completely and overall system noise remained close to the idle level while actually playing a movie -- the Samsung SH-123L was impressive in that respect.

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