238、Make sure that the fluid that goes through the tube has no bubbles.

1223、STE is a living 1anguage and needs feedback from the users to improve it on a continuous basis.

1222、请注意,飞机的改装或修理工作必须由持照人员完成。

1221 、 Aircraft maintenance manual or section ， which includes at 1east thefo11owing D informationintroduction information that includes an explanation of the airplane＇s features and data to the extentnecessary for maintenance or preventive maintenance.

1220、对于拥有或操作非运营飞机的持照飞行员，可以在联邦航空法规 43 部的授权下对其飞机实施受限制的预防性维修。

1219、It has a single shaft and operates at a constant speed.

1218、This enables better thrust management and decreases fuel consumption.

1217、用大量肥皂水清洗窗户。

1216、This document shall specify，for a crack inspection, the minimum size crack expected to be discoveredor, if no minimum is defined, a statement to this effect.

1215、Controls in the flight compartment permit selection of temperature and flow rates.

1214、不要使用可能引起火花的测试设备。r