28. The time intervals for the inspections vary with the types of aircraft

3335. Unless the manufacturer＇s instructions tell you differently, do the procedure that fallows

3334. This is a recommended precaution to keep the center tank in good condition It is recommended that you do this procedure at intervals of 100 days

3333. Do not print on the back of the title page

3332. Damage can occur to the pump if there is not sufficient oil in the reservoir

3331. Identify revisions, additions and deletions by a vertical black line along the outside of the page opposite only that portion of the printed matter that was changed

3330. Remove all sealant that is around the hole

3329. 用于控制和引导从进口油嘴流向出口油嘴通过润滑油的流量。

3328. Within the profile of the basic engine, used to supplement the functioning of other defined systems external to the engine

3327. The emergency procedures check list should be in concise, abbreviated form designed to remind pilots of items to check without providing details concerning the operation of any system

3326. 将句子的第一部分与垂直列表中的后续项分开。