179. 如果仪器无法正常运行,请进行测试

If the instrument fails to respond, do a test.

If the instrument does not operate correctly, do a test

If the instrument does work correctly ,do a test.

正确答案：B

设备系统操作理论翻译

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3184. Operational Test That procedure required to ascertain only that a system or unit is operable

3183. Refer to chapter 6 for instructions on how to park in bad weather conditions

3182. the load is applied axially

3181. 将机轮挡好轮档。

3180

3179. If there is fuel leakage from the couplings, repair them

3178. Airplanes modified by STC are not the responsibility of ABC

3177. The aws are reconfigured to keep the load alleviation capability should an aileron or spoiler surface become inoperative

3176. 小心别把酸弄到皮肤上。

3175. The time between clicks must be 20 seconds