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- Here we need to distinguish between dimensions (like speed) and units, the specific things we measure with (like miles per hour or meters per second). 我们需要分清楚量纲(比如速度)和单位(我们用来衡量事物的尺度,比如每小时英里数或者每秒米数)。
- They found that cannonballs shot at the highest velocity possible in the 19th century (about 1,100 miles per hour or 500 meters per second) did relatively little damage. 他们发现，炮弹射击的最高速度可能在19世纪（约1100英里每小时或500米每秒）没有太大破坏。
- But cannonballs shot at the lowest 19th century velocity (about 225 miles per hour or 100 meters per second) gave the wood enough time to bend, splinter, and burst, causing massive damage. 但是炮弹射击最低19世纪的速度（大约225英里每小时或每秒100米）给予足够的时间来木材弯曲，分裂，并爆裂，造成大规模的破坏。
- Can your car make a hundred miles per hour? 你的汽车一小时能开一百英里吗?
- The car is spinning along120 li per hour. 这车正以每小时120里的速度行进。
- The hurricane has a speed of 73 miles per hour. 飓风每小时73英里。
- The speed limit is 40 miles per hour. 规定的最高时速为40英里。
- The cruiser's speed is 50 miles per hour. 巡洋舰的速度每小时有50海里。
- The going rate for the job is $10 per hour. 这项工作的现行工资是每小时十美元。
- The truck was traveling under fifty miles per hour. 那辆卡车以每小时不到五十英里的速度行驶着。
- The going rate for the job is￡4 per hour. 这种工作的现行工资是每小时四英镑。
- We were bowling along (the motorway) at seventy miles per hour. 我们以每小时七十英里的速度(在高速公路上)飞驰。
- 9 The penetration rate (ROP) has been 6.18 meters per hour. 机械钻速为6.;18米/小时。
- The maximum speed of this car is 150 miles per hour. 这辆车的最大时速为一百五十英里。
- The batching plant has capacity of 35-180 cube meters per hour; 该搅拌站已能力35-180米的立方体每小时;
- For safety's sake, don't drive more than 30 kilometers per hour in the city. 为了安全起见，在市内开车时速不要超过三十公里。
- Cars cannot exceed35 miles per hour within city limits. 在市区线以内车速不能超过每小时35英里
- Meter per Hour 米/小时
- The odometer shows now 140 miles per hour. 里程表显示现在的时速为140英里。
- This car goes faster than 120 miles per hour. 这辆汽车的时速超过120英里。
