243.The dust cap on the air charging valve is removed, the external air source is connected to the valve stem and the swivel nut turned to open the air charging valve( )

694.如果堵塞导致旁通打开或进口和出口压力显著变化,则指示灯点亮。( )

693.微生物的生长通常发生在燃油箱的燃油/水分界面。( )

692.Position the sprayer unit nozzles in the APU air intake as required( )

691.在应用它之前,必须制作成一个胶粘剂。要做到这一点,将粉末与纯净水或石油溶剂油混合。 ( )

690.When accumulated revisions, including back-up pages, total over 60% of the total pages in the manual, a reissue of the manual should be prepared ( )

689. In English， a verb and one or more prepositions sometimes go together to make a "phrasal verb" This phrasal verbthen has a meaning which is different from the meanings of its parts Phrasal verbs often have two meanings， the original，more concrete meaning， and a more abstract one， too

688.Examine the area that is around the drain holes for signs of corrosion( )

687.如果电缆扭曲,断开两个电插头。 ( )

686.Air supply system is used for pressurizing supply tanks to insure fluid flow ( )

685.Format and layout is to be determined by the CAP producer, recognizing that it is desirable that the format and layout be similar to the producers existing documents ( )