The island's social hub is the Cafe Sport...该岛的社交中心是“体育咖啡馆”。the commercial hub of the city城市的商业中心The gear hub are not allowed to move along axially.齿轮套不得有轴向窜动.A fairing fitted over the hub of the propeller in some a...
the commercial hub of the city城市的商业中心Chicago is a hub of airline traffic.芝加哥是航运中心.Lee was at the hub of some incisive attacks in the second half.在下半场，李组织了几次快速进攻。...
为了更加准确地计算火炮弹丸的起始扰动,将两相流内弹道应用于发射动力学研究.This paper focuses on the study of launch dynamics self - propelled artillery.线圈靶测速是一种行之有效的弹丸速度测量方法.Coil target is an effective method to pill velocity measurement.通过外弹道程序,获得弹丸出炮口后的运动...