在撞击过程中, 动量的变化是突然的,但非瞬时的.In a crash, momentum changes abruptly but not instantaneously.有时,在局部速度中可能出现瞬时脉动.Sometimes temporal fluctuation may take place inthe local velocity.它表示寻常光波前和非常光波前的瞬时轨迹.It represents the instantaneo...
Dives always have the best live music - directly proportional to how many felons they're serving given time.下等酒吧总有最棒的现场音乐 —— 乐队的好与坏直接与他们服务的蛇头多与少成正比....a proportional fee based on the final sale price.与最后销售价格成比例的费用Th...
要达到满意的块煤率, 关键是合理的截齿排列.To attain the satisfied lump coal rate, the key is reasonable picks - lacing.再往火里添几块煤.Put a few more lumps of coal on the fire.“我在土袋子里发现了几块煤. ”I found some pieces of coal in the sacks of dust!...