In a four-bar linkage mechanism, when the angle between coupler and rocker (also known as ∠BCD) is larger than 90°, the transmission angle of the mechanism is γ = ( ).
A、180°-∠BCD;
B、∠BCD;
C、∠BCD-180°;
D、∠BCD-90°
发布时间：2025-07-22 21:30:31
