An early sign of this disruption is the alternating shortages of essential drugs and supplies reported by the Ministry.
这一中断的早期迹象是卫生部报告的基本药品和用品交替短缺。
2
Physical examination: the patient can not complete both hands alternating movement test, heel-knee-tibia test, and finger-nose test, and presented pyramidal sign.
体格检查呈高腭弓，双手轮替动作试验、跟-膝-胫试验和指鼻试验均不能完成，并有锥体束征；
3
A fatigue or alternating load is a load whose magnitude and sign are changed which time.