拧紧螺母，但此时不要打力矩。
AA. Tighten the nuts but do not torque them at this time.
BB. Screw the nuts but do not torque them at this time.
CC. Tighten the nuts but do not screw them at this time.
AA. Tighten the nuts but do not torque them at this time.
BB. Screw the nuts but do not torque them at this time.
CC. Tighten the nuts but do not screw them at this time.