aperture signal coupling lever 光圈指示连动杆
meter coupling lever 测光连动杆
lever-and-screw coupling 螺旋杠杆联结器
Transmission : normally meshed helical gear drive, coupling sleeve shift and two lever operation. The transmission has five forward speeds and four backward speeds .
变速箱采用常啮斜齿轮传动，结合套换档、双杆机械操纵，前进五档、后退四档。
Research the coupling of pier-water, especially the influence to the vibration speciality of pier from high water lever to give the referenced.
通过对墩-水耦合振动的研究，尤其是水位高度对桥墩振动特性影响的研究，为今后高水位桥梁设计和抗震分析提供了参考和依据。
Shift lever balls; Roller tires; Coupling elements;
变速杆球，滚轮胎，耦合元素；
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