Moreover, design error and poor construction quality have an effect on it.
二是设计不当或施工质量差；
Traditional design of a four-bar mechanism is complicated and has larger design error.
传统的连杆机构设计比较繁复，误差也大。
Traditional design of a four-bar mechanism is complicated and has larger design error.
传统的连杆机构设计比较繁复，误差也大。
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