drop in的近义词有：call on, see, visit, drop in。下面这些动词或词组均含有"拜访，访问"的含义：call on：社交上的正式用语，指无目的、礼节性的短暂拜访，访问者与被访问者之间一般只有社交或公务关系。see：常用词，含义广泛，既可指接受他人来访，又可指去访问他人。visit：正式用词，强调出于工作需要的访问，也指亲戚朋友间的看望。drop in：多指在计划之外或事先未打招呼的偶然、顺便访问。也可指参观...
They slashed the vegetation back with their machetes.他们用大砍刀把作物截短.The tribesmen were hitting the war trail with spears and machetes.土著人开始挥动枪刀作战.Some were hacked to death with machetes.有些人被大砍刀砍死。Some were hacked to death w...
This setup consists of a butterfly valve and a rotary electromechanical actuator.这套装置由蝶阀和旋转电动驱动器组成.A new torque identification strategy of valve electric actuator is proposed.提出一种新型阀门电动装置力矩辨识方法.Performance of control sys...