A、 把 0 形封圈浸泡在液压油里面
B、 防止液压油腐蚀 0 形封圈。
C、 用液压油润滑 0 形封圈。
答案：C
A、 把 0 形封圈浸泡在液压油里面
B、 防止液压油腐蚀 0 形封圈。
C、 用液压油润滑 0 形封圈。
答案：C
A. 本节必须规定型号合格证所要求的每次强制更换时间,结构检查间隔,以及相关的结构检查程序
B. 本节必须规定每一次强制更换时间,结构检查间隔,和机型证书所要求的相关的结构检查程序
C. 本节必须规定部件更换的时间,结构检查时间,和相关的结构检查程序所需的型号合格证
A. contamination of the grease can cause damage to the bearing
B. contamination of the oil can cause damage to the shaft
C. pollution of the grease can cause damage to the axle
A. 当反推收回时,确保飞机远离人员
B. 当反推放出时,确保人员远离飞机
C. 当反推运动时,确保人员远离飞机
A. When the temperature of vent rises to 27℃, the exhaust pipe opens
B. When the ventilation temperature is above 27℃, the drain mast opens.
C. When the temperature of the ventilation air increases to 27 ℃, the discharge valve opens.
A. 如果测试失败,应该根据困难决定修理的内容。
B. 如果测试结果不合格,应该根据故障决定修理的深度。
A. 在可能的地方,将分号从定义和核准示例文本中删除是可行的。
B. 在可能和不得已的情况下,将标记符号从定义和示范示例的文本中删除。
C. 在可能和可行的情况下,将引号从定义和批准示例的文本中删除。
A. Schematics must be readable to a normal visioned person, so legends, symbols devices, codes, etc.
,
should be of sufficient size. The schematic diagram should be designed to turn over the page when the
content is necessary.
B. The schematic diagram must be of sufficient size that legends, symbols, devices, codes etc., are readable by
persons with normal vision. Turn-page schematic diagram shall be avoided to the extent practical.
C. The schematics symbols, devices, codes etc. must be 1egib1e, so peop1ewith normal vision should avoid
turning the schematic pages as much as possible
A. Your skin and lungs can be protected
B. Your skin and lungs can be harmed.
C. Your skin and lungs can be harmed suddenly.
A. 如果无法使用自动控制,请使用人工控制程序
B. 用手动程序代替自动控制程序完成操作
C. 尽可能使用手动程序替代自动控制
A. For vocabulary, only main alternation are highlighted, minor alternations to many approved and not approved examples are not highlighted.
B. For wordlist, only major changes are highlighted, minor changes to various approved and not approved examples are not highlighted.
C. For vocabulary, only main alternation are prominent, minor alternations to many approved and not approved examples are not prominent.
