常见例句双语例句He was one of the most inventive watchmakers of his day and held patents for a detent escapement, bimetallic balance and helical balance spring .他是那个时代最具创造力的制表大师之一，他拥有锁簧式擒纵机构、双金属摆轮以及螺旋游丝的专利。 返回 bimetallic balance