172.Do not use acids without breathing protection.

A. 这个日期模块告诉你如何操作这个单位。

B. 这个数据模块告诉你如何计算这个单元。

C. 这个数据组件告诉你如何操作这个装置。

A. 如果无法安全实施这一机动,应提供不要尝试此机动的警告。

B. 如果一个动作不能安全完成,要有警告不要完成这个动作。

C. 如果不能完成一个动作,要提供一个安全警告。

A. 确保电缆的张力是正确的。

B. 确保电缆的电压是正确的。

C. 确保钢索的张力是正确的。

A. The total weight must be approved and the CG shall be within the limits.

B. The total weight and CG must be within the specified range.

C. Totals must be within approved weight and CG limits.

A. 21 章指随飞机提供的供应商数据,以填充以下 -00 至 70 节(如适用)。

B. 21 章可参考随飞机提供的供应商数据,来填充以下 -00 至 70 节(如适用)。

C. 21 章可以指随飞机提供的供应商数据,按照从-00 至 70 节的顺序(如适用)。

A. 货舱里有地板和衬层。衬层防止货舱内出现烟雾,防止对衬层和导线造成损坏。

B. 货舱里有地板和衬层。衬层使烟雾留在货舱,防止对衬层和导线造成损坏。

C. 货舱里有地板和衬层。衬层使烟雾留在货舱,防止对管路和导线造成损坏。

A. The function of the rules in this specification is to direct the revising of all materials that are contained in Maintenance Manuals prepared by manufacturers.

B. With respect to format,style and method of presenting for all materials which are contained in Maintenance Manuals prepared by manufacturers,you can refer to the rules that are included in this specification.

C. When presenting format,style and method for rules of this specification,all materials of Maintenance Manuals prepared by manufacturers shall be accorded with.

A. Use a fan to suck the gases.

B. Use a turbine fan to remove the gases.

C. Use a fan to remove the gases.

A. Water above the kitchen floor can seep in through small holes in the floor surface,invisible to the naked eye.

B. Eyes cannot see the vapor which may penetrate through small holes of the floor surface in the galley.

C. Moisture above the galley floor can go through small holes in the floor surface area and stay out of view.

A. In the STE example,this safety description is given as a caution,but if you know about oxygen systems,you also know that oxygen can occur explosions.

B. In the non-STE example,this safety instruction is given as a caution,but if you know about oxygen systems,you also know that oxygen can cause explosions.

C. In the non-STE example,caution is given in this safety description.But if you know about nitrogen systems,you also know that nitrogen can cause flames.