11月美国的贸易赤字扩大到75.9亿美元。The US trade deficit widened to $7.59 billion in November.1987年美国的贸易逆差创历史最高纪录,达到1520亿美元.The U.S. trade deficit hit a record $ 152 thousand - million that same year.主要位于布宜诺斯艾利斯,伦敦,巴黎,圣保罗,美国的威尔顿和孟菲斯.Ag...
这个奇异点的产生仅仅是形式上的, 因为我们忽略了阻尼的作用.The singularity arises only formally, because we neglected the effect of damping.速度陀螺反馈提供正向动力学稳定性和对于指令式扰动的很好阻尼的瞬时响应.The rate gyro feedback provides positive dynamic stability and well - damp...
He wolfed down the rest of the biscuit and cheese.他把剩下的饼干和奶酪一扫而光。He wolfed ( down ) a good meal.他 狼吞虎咽 地吃了一顿美餐.The Russian soldiers sampled the officers' rations and wolfed the superior food with delight.俄军士兵尝了一下长官的...
The drill should be slowly rotated to ensure a clean hole.钻头必须缓慢转动，以保证钻孔平整光滑。Goldsmith has repaired the roof to ensure the house is wind-proof.戈德史密斯修理了屋顶，以确保房屋能够抗风。Ensure that the frame is securely fixed to the ground wi...