记录测试结果。

A. 如果超过50%的污染物造成孔堵塞，则要清理显示组件背面的孔。

B. 如果污染物造成孔堵塞超过 50%，就要清洁显示组件后面的孔。

C. 如果50%的孔被污染物堵塞，则要清理显示组件底部的孔。

A. Exterior Placards and Markings are required for ground servicing instructions, inspections, cautions, warnings.

B. Exterior Labels and Markings are required for ground servicing instructions, inspections, cautions, warnings.

C. Exterior Placards and Markings are required for ground servicing instructions, inspections, warnings, cautions.

A. The recommended inspection procedure provided by the manufacturer when delivering the aircraft helps to ensure its airworthiness throughout its life. Due to differences in the tasks performed, maintenance provided, service life, and usage rate of the aircraft, ABC Company has determined through inspection, testing, and analysis that it is necessary to provide additional inspection requirements to further ensure that the aircraft can continue to operate under the initial approved design load.

B. The recommended inspection procedures provided by the manufacturer at the time of delivery of the aircraft help ensure its airworthiness. Due to differences in the missions performed, maintenance given and the age and utilization of the aircraft, ABC has determined, based on inspections, testing and analysis, that additional inspection requirements are deemed necessary to further ensure that the aircraft can continue to operate at the initially validated design loads.

C. The airplanes were delivered with recommended inspection programs to keep them airworthy. Because of the varied missions the airplanes performed, type of care given, and age and utilization rates, ABC has determined, based on inspections, tests, and analyses, that it is necessary to provide additional inspection requirements to further ensure that the airplanes can continue to carry the design loads it was originally certified for.

A. 基本上，作者可以使用字典中已批准的词汇作为核心词。

B. 在主要部分中，作者可以使用字典中已认可的词汇作为核心词。

C. 在基础部分中，作者可以使用字典中已核实过的词汇作为核心词。

A. Find the related EICAS status message which present with the maintenance information .

B. Find the correlated maintenance message that shows with the EICAS status message.

C. Find the applicable maintenance message displaying with the EICAS status message.

A. The manufacturer may establish procedures to provide drawback on unairworthy conditions.

B. The manufacturer may establish procedures to provide response on unairworthy conditions.

C. The manufacturer may establish procedures to provide recall on unairworthy conditions.

A. 确保座舱温度保持恒定。

B. 确保座舱压力保持不变。

C. 确保座舱湿度保持稳定。

A. 反推装置是系统中引导废气产生推力的部分。

B. 反推装置是系统中改变排气方向用以向后推力的部分。

C. 反推装置能够改变排气方向进而产生反推力。

A. “寿命限制部件的建议或要求的报废时间”。建议使用“CAUTION”告诫一并用适当的10号大写将文本括在一个框中。列出制造商建议的部件或组件报废时间（使用小时、循环或其他适当的决定因素）和FAA要求的寿命限制的部件或组件报废（停用）时间。

B. “推荐的或要求的限寿件退役时间”。建议使用“CAUTION（告诫）”进行强调，以10号字、全大写表示，置于框内。载明制造商对相关部件或组件的建议报废时间（以小时数、循环数或其他适当因素表述）以及FAA要求的时寿件报废（停止使用）时间。

C. “时寿件的建议或要求的退役时间”。建议使用 “CAUTION（告诫）”一词，并以适当的10点大写字母表示，并将其放在一个方框内。规定制造商对部件或组件的建议报废时间（使用小时数、周期或其他适当的决定因素）和FAA对有限寿命部件或组件的要求报废（从服务中移除）时间。

A. The swivel nuts on both valves engage threads on an internal stem that loosens or draws tight the valve stem to a metal seat.

B. The rotating nuts on both valves are meshed with the threads on the inner valve stud, so that the valve stud is loosened or tightened to a metal valve base.

C. The swing nuts on both valves engage with the threads on the internal spool, allowing the spool to loosen or tighten to the metal seat.