1091. A system is a combination of interrelated components arranged to perform a specific function

2272. TACHOMETER

2271. If the probes touch each other, they can become demagnetized

2270. The hydraulic pressure system supplies pressure for the operation of the flight controls

2269. Number the pages of multi-section CAPs with section number and a dash （ie， “1-” for all pages in the “physical requirements” section） followed by the serial number of the page beginning with “1” for each section （eg， page 1-1，1-2 Etc）

2268. Select the hydraulic system that you will pressurize

2267. 以下程序将预防飞机结构、涂层或系统部件的退化。

2266. 如果可能,做地面发动机试车,以确保能得到相同的指示。

2265. Heat sensors monitor the ambient temperature

2264. If the humidity changes frequently, put a cover on the unit

2263. Explain how to recognize potential problems and handle emergencies