Adjust the gyro accurately.

A. 只有字典里没有出现的技术名词或者技术名词的一部分可以使用。

B. 对于词典中未批准的词,只有当它是技术名称或技术名称的一部分时才可以使用。

C. 仅当一个单词完全或部分是技术名词时,字典中未被批准的单词才可以使用。

A. 降低系统温度。

B. 释放系统压力。

C. 解除系统警告。

A. 打磨两条线之间的孔洞区域。

B. 在两条线的交点上钻一个孔。

C. 通过孔洞排空两条管路。

A. When simulating altitude, make sure you have alternate ATC transponders in active mode.

B. Make sure that the ATC transponders are in standby mode when you simulate altitude.

C. It is optional to keep the ATC transponders in ready mode during altitude simulation.

A. In order to correctly connect the parts together, you have to put weight on the panel surface.

B. Apply weight on the surface of the patch to make sure that the parts bond correctly.

C. To make sure the parts are engaged properly, you should pressurize the plate surface.

A. 技术动词既可以用作动词，也可以用作名词。

B. 技术动词只能用作动词，不能用作名词。

C. 技术动词和动词的用法相同，与名词不同。

A. 反推可以提供刹车力使尾喷气流偏转至相反方向。

B. 反推通过使排气气流转向相反的方向来产生制动力。

C. 尾气气流偏离至反方向从而使反推提供刹车。

A. Information on specific optional systems or equipment may be included in this section or in Section 9, Supplementary.

B. Information about noncompulsory systems or equipment may be included in this section or in Section 9, Supplements.

C. Information on specific optional systems or equipment may be included in this Section or in Section 9, Supplements.

A. Proper recipe shall be adopted to measure the pressure.

B. The pressure shall be estimated by using accurate equation.

C. Calculate the pressure with the applicable formula.

A. 松散接头会造成损伤。

B. 错误连接会造成损伤。

C. 损伤的原因是松散连接。