Now many propellers are keyless, so we install or remove a propeller by hydraulic pressure.
Now many propellers are keyless, so we install or remove a propeller by hydraulic pressure.
现在许多螺旋桨都是无键的，用液压来拆装。
Now many propellers are keyless, so we install or remove a propeller by hydraulic pressure.
现在许多螺旋桨都是无键的，用液压来拆装。