797、每一章或每一节都是以这个系统及其操作的一般描述开始，并应称为“描述和操作”

691、To remove the cover assembly (9). first remove the four screws (10)

690、To establish the basis for those items to be included, the following assumptions have been made.

689、Tighten the nuts but do not torque them at this time

688、Three computers collect data and parameters from the systems and put them together on the data link to the display unit.

687 、 Those instructions necessary to support the aircraft during maintenance and repair, includes information on shoringmaterials and equipment, contour dimensions, shoring locations, etc.

686、Those instructions are necessary to carry out the scheduled servicing.

685、This specification will meet the applicable government regulatory requirements

684、this specification was developed with the objective of minimizing the cost

683、This Specification has been developed in response to Federal Aviation Administration ( )h Advisory Circular AC91-60

682、this shows that you can install an alternative relay