煤

You are eating coal all the time.

你是吃煤所有的时间。

Coal is one of the most important energy sources in the world .

煤是世界上最重要的能源之一。

I knew I was going to be in coal country, but I was shocked by what I saw.

我知道我要去的是一个以煤为主的国家，但我所看到的着实让我感到震惊。

We have a good supply of coal and water.

我们有大量煤和水的供应。

There is plenty of coal in this area.

这个地区有丰富的煤。

We have run out of coal.

我们的煤用光了。

They want to raise the output of coal.

他们想要提高煤的产量。

We must produce more coal to meet the needs of socialist construction.

我们必须生产更多的煤来满足社会主义建设的需要。

Therefore, the development of China's coal is of great practical significance.

因此，发展型煤对我国具有十分重要的现实意义。

Coal is the most important energy sources of the development of China.

煤是国民经济发展最需要的能源之一。

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。