這是一種近似直線機構，目的是從輸入端的旋轉運動產生輸出端的直線運動，但是輸出並非是完美直線，所以常用在淺的鑽油平台上或是水井等對直線度要求不高的應用上。 It is an approximately linear mechanism, which transits the rotation into the linear motion. However, the linear motion is not perfect, so is only applied in some devices which do not require a high degree of linear motion, etc. shallow oil platforms and wells.
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It is an approximately linear mechanism, which transits the rotation into the linear motion. However, the linear motion is not perfect, so is only applied in some devices which do not require a high degree of linear motion, etc. shallow oil platforms and wells.