手头上有合适的设备将会帮上大忙。Having the right equipment at hand will be enormously helpful.在公司倒闭后，他手头缺少现金。He was short of cash after the collapse of his business.手头的生意似乎快到紧要关头了。The business in hand was approaching some kind of climax...
The direct compression and artificial digestion method were used to examine the encysted metacercaria of C.用直接压片法和消化法检查淡水鱼虾体内的华支睾吸虫囊蚴.Objective To study the infection of freshwater fishes with the encysted metacercaria o...