A zero-install roll Angle of the wrap around fins projectile still has roll moment at zero Angle of attack.
2
介绍了汽车外覆盖件中影响扣合件质量的因素及应注意的问题。
Introduced the influence factors on the quality of the buckle close pieces of the automobile covering parts and problems which should be pay attention.
3
必须定期检查大钳的折页销子,扣合头和弹簧,如果出现磨损超标,就更换。
The rig tongs hinge pin, latch lock and springs must be inspected at regular intervals and changed out if excessive wear is encountered.