The manipulators structure , operation principle and hydropneumatic system are described systematically in the paper.介绍一种两自由度液压驱动式上料机械手,包括其机构设计 、 工作原理及液压气动系统....
During that time, Snowboarding appealed initially to a small group of surfers, skateboarders, and backcountry enthusiasts.那时候, 单板滑雪吸引了一小批冲浪 、 板和越野的狂热爱好者....
Ah Fu laughed scornfully and said, " Who made me a cuckold?阿福冷笑道: “ 王八是谁挑我做的?'stinking bitches, fetch that cuckold to play for us.“ 臭货, 喊龟子出来,跟老子拉琴,赏一千!" He'd be a cuckold, eating left - overs. "“ 当王八的吃俩炒肉 ”!...
They often go fishing .他们常去钓鱼。He uses a rowboat to go fishing on the lake.他用划艇在湖上钓鱼.More anglers are taking cameras when they go fishing to provide a memento of catches.更多的垂钓者去钓鱼的时候带上了照相机，以便钓上鱼后留个纪念。...