行驶

The car is going at a speed of 100 km/h.

汽车以每小时100公里的速度行驶。

He drove at a speed of 60 miles an hour.

他以每小时六十英里的速度行驶。

It moved at a speed of 60 km an hour.

它以每小时60公里的速度行驶o

The train is traveling at a speed of 200 miles per hour.

火车正以每小时200英里的速度行驶。

His car was running at full speed .

他的车是超速行驶。

The train is traveling at the speed of 120 miles per hour.

火车正以每小时120公里的速度行驶。

Policeman: You're not sure? You were going at 90 miles per hour!

你不知道？你正以90英里的时速行驶！

He drove at a speed of forty miles per hour.

他以每小时40英里的速度驾车行驶。

E.g. He drove at a speed of 70 miles per hour.

他以每小时七十英里的速度行驶。

The car is travelling at 70 miles per hour.

这车正以每小时70英里的速度在行驶。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。