The meter is devided into two parts: the primary meter (detector) and the secondary meter.

该仪器分为一次表（探头）和二次表两部分。

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This instrument can measure automatically the oil consumption at the normal rating and the r. p. m. of the supercharger and the diesel, fitting with the corresponding primary meter.

这种装置可以自动测试柴油机在额定状态运行下的油耗率，并配合相应的一次元件能自动测试柴油机和增压器的转速。

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The Thirty Meter Telescope's massive primary mirror has 492 segments, all perfectly aligned to form a 30-meter (98-foot) light-collecting surface.

30米望远镜的巨型主镜分割成了492块，完美地排列从而形成30米(98英尺)的集光面。

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Each attack or block also builds the power meter, which has three primary uses.

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