Bookcases flank the bed.床的两侧有书柜。Sardinia and Corsica lie on the flank of the long Italian boot.撒丁与科西嘉位于意大利靴形半岛之侧面....a troop of enemy cavalry trotting towards the Dutch right flank.敌方一支骑兵队正冲向荷兰军右翼Our fusillade from the l...
一会儿天阴得很黑;紧跟着就是打雷打闪.Pretty soon it darkened up and begun to thunder and lighten.一天傍晚, 突然下起可怕的暴风雨,又响雷又打闪.One evening a fearful arose, it thundered and light end.恐怕暴雨即将来临, 您看见那边打闪了 吗 ?I feel a thunderstorm is brewing. Do yo...
She started once again on the steep upward climb.她又开始沿着陡峭的山路往上爬。The boys lifted up their legs, indicating they wanted to climb in.男孩们抬起腿，示意想要爬进来。The economy is starting to climb out of recession.经济开始走出衰退。...
分析了滚珠丝杠副的原理及结构形式.The rule and the composition of the ball screws were analyzed.给出四方向等载荷型哥德式沟槽直线滚动导轨副的装配关系.Assembly has a great influence on the quality of high precise linear motion rolling guide.在球面连杆机构中, 所有的转动副的轴必在一点上相...