习近平总书记指出，要大力弘扬精益求精的工匠精神，营造什么的社会氛围？

411 Explain how to use seat belts and shoulder harnesses.

410 Each electrical system has a code to identify it.

409 Distances shown are based on zero wind

408 Comments are located directly below the repair/modification section,extending from the left to the right margins.

407 Bleed the system before you disconnect the components

406 All personnel must fully know the safety precautions

405 Add solvent to make the paint more liquid

404 “Decrease” is better because it describes the pressure,not the indicator that monitors the pressure.

403 紧急程序检查单应简明扼要 旨在提醒飞行员检查的项目,但不应提供任何系统操作的细节

402 如果你发现了裂纹,进行相应的修复程序。