【单选题】
Extended cyclical variations in tensions will cause an anchor chain to break due to().
A、fatigue
B、corrosion
C、distortion
D、abrasion
A、fatigue
B、corrosion
C、distortion
D、abrasion
A、Normal cyclic prefix B、Abnormal cyclic prefix C、Standard cyclic prefix D、Extended cyclic prefix
A、A.POWER UP TEST,CYCLIC TEST两类 B、B.POWER UP TEST,CYCLIC TEST,SPECIFIC TEST三类 C、C.POWER UP TEST,CYCLIC TEST,SYSTEM TEST,SPECIFIC TEST四类
A、电压功耗应不大于0.5VA电流功耗不大于0.25VA B、电压功耗应不大于0.25VA电流功耗不大于0.25VA C、电压功耗应不大于0.5VA电流功耗不大于0.5VA D、电压功耗应不大于0.25VA电流功耗不大于0.5VA