427.The schematic diagram should tend to deal with an overall system
rather than with subsystems, e.g., the air conditioning system rather
than a compressor or blower within the air conditioning system.

344.只有批准人员才能操作刹车。

343.To facilitate troubleshooting, repair of circuits, and replacement
of components, an identification and coding system should be used.

342.Though techniques such as shading, crosshatching, screening or
similar means are recommended, the use of color is permissible.

341.As only approved limitations may be included in this Section,an
introductory statement to this effect shall be contained in a prefatory
note or the opening paragraph.

340.The loading conditions together with the resulting margins of safety
were evaluated.

339.The adjustment test description shall provide instructions for
accomplishment of a test or check to assure the integrity as an
operational component of a system, subsystem or unit assembly.

338.Select the hydraulic system that you will pressurize.

337.MAKE SURE THAT THE TOOLS DO NOT ( ) INTO THE ENGINE.

336.若必须靠近发动机排气口,做好耳朵防护措施。

335.Trichloroethylene is a health hazard.