729 Make sure that there is tension in the lockwire.

820、The dictionary also gives a selection of unapproved words,with examples that show how to use alternative words.

819、纵桁和上翼面蒙皮构成通风通道。通风通道在中央油箱内有排放浮子活门

818、If you install the upper drag strut incorrectly,it will hit the lower drag strut during retraction.

817、Saturate the element for two hours.

816、If the maintenance message does not show in “current status”,then there was an intermittent fault.

815、当门开着时要小心。

814、If the test fails,the display shows a fault message under MORE DETAILS.

813、Replace components that are worn more than the maximum limits.

812、The properties of these sealants prevent corrosion.

811、有些工作或流程由几个基本操作组成,每个操作下面有若干小步骤或工作项。