Install the cable through the guide tube below the cabin floor.

A. 拧紧螺母至足够牢固，而不是用手可以去拧动得动。

B. 拧紧螺母，但要保持足够宽松度，便于用手可以取下它。

C. 要保持螺帽被拧紧，使你的手无法拧松它们。

A. The turboprop engine controls include linkages and controls to the coordinator or equivalent and from the coordinator or equivalent to the propeller governor, fuel control unit, or other units being controlled.

B. The control device of a turbojet engine includes a linkage mechanism and control device to a coordinator or equivalent device, as well as a linkage mechanism from a coordinator or equivalent device to a propeller governor, fuel control component, or other controlled components.

C. The turboprop engine controls include a coordinator or equivalent device, a linkage mechanism, a control device, a propeller governor, a fuel control component, or other controlled components.

A. It＇s not easy to install more than two washers for each bolt.

B. It is forbidden to install more than two washers for each bolt.

C. Installing one washer for each bolt is forbidden.

A. This program is not available at present.

B. This procedure is not applicable at this time.

C. This program is not reasonable now.

A. The autothrust system is in but not in operation.

B. The autothrust system is on but not in operation.

C. The autothrust system is out but not in operation.

A. 本节应包括相应的告诫， 提醒不得使用未经批准的清洁剂以及使用经批准的清洁剂可能伴有的危险源。

B. 本节应包括相应的告诫，提醒使用未经授权的清洁剂以及使用授权清洁剂的可能危害的注意事项。

C. 本节应提供关于使用未经授权的洗涤剂以及使用授权洗涤剂的可能危害的注意事项。

A. Do not reach this speed with a given flap setting.

B. Do not exceed this speed with a give flap setting.

C. Do not exceed this speed with a given flap setting.

A. 基本上，它是以对飞行员最有用的形式来呈现已被证明的概念的行业标准化指南。

B. 基本上，它是一个指导行业标准化的证明概念，以一种最有用的形式提供给飞行员。

C. 基本上，它是一个证明行业标准化概念的指南，并提供一种对飞行员最有利的形式。

A. In the event of filler bonding to the tool, dip the tool in cold water.

B. If the filler bonds to the tool, avoid using water to moisten the tool.

C. If the filler sticks to the tool, make the tool wet by applying cold water.

A. Mach digit is the percent of true airspeed to the speed of sound.

B. Mach number is the ratio of true airspeed to the speed of sound.

C. Mach number is the proportion of real airspeed to the speed of light.