521.Distances shown are based on zero wind.

251.It is not necessary to include a relocated chapter table of contents
if the total chapter has been relocated, but the subsystem relocations
should then be identified in the Table of Contents at the front of the
book.

250.所有的修改都要得到设计部门的批准。

249.BEFORE YOU ( )THE UNIT, DO THE SPECIFIED TEST PROCEDURE.

248.用柔软的干布快速摩擦表面。

247.Distances shown are based on zero wind.

246.它包括诸如减震支柱充气等项目。

245.Subject headings shall be the same as, or substantively equivalent
to, the examples used in this Specification except when not appropriate
because of the design or operational features of the type of airplane.

244.It is( )install more than two washers for each bolt.

243.Additionally,items not previously considered for inclusion in the

242.THE LIFE OF THE UNIT WILL DECREASE IF YOU LET THE UNIT BECOME DIRTY.