煤

It is necessary for us to replace coal by gas.

我们用煤气代替煤是必要的。

Some people say we should spend more money looking for new sources of oil, coal and natural gas.

有人说我们应该花更多的钱去寻找石油、煤和天然气资源。

Example Our country has a great deal of coal,oil and natural gas.

我们国家有大量的煤，石油和天然气。

Some people say we should spend more money looking for new sources of oil, coal, and natural gas.

有些人说，我们应该花更多的钱去寻找新的石油、煤和天然气的源头。

It is caused by factories that burn coal or oil or gas.

它是由工厂燃烧煤或石油或天然气。

BASF has its own coal, oil and gas resources.

巴斯夫拥有自己的煤、石油和天然气资源。

There is more energy than in all the coal,oil,and gas we have on earth.

蕴藏的能量比我们地球上全部的煤、石油和煤气中的能量都多。

The country has a great deal of coal, oil and natural gas.

这个国家拥有大量煤、石油和天然气。

The application of fuzzy method to the forecast of coal and gas burst.

模糊数学在煤与瓦斯突出预测中的应用。

Coal gas is produced by the gasification of coal .

煤气是由煤的气化作用得到的。

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。