关于”煤炭“的英语作文范文2篇，作文题目：coal。以下是关于煤炭的xx年级英语范文，每篇作文均为高分范文带翻译。

高分英语作文1：coal

A smart housewife was told that there was a stove that consumed only half of the coal she burned. She was very excited and said, "that's great, because one stove can save half of the coal. If I buy two, I don't need coal.".

中文翻译：

一位聪明的家庭主妇被告知有一种炉子只消耗她燃烧的煤的一半。她非常兴奋，说：“那太好了，因为一个炉子可以省一半的煤，如果我买两个，就不需要煤了。”。

万能作文模板2：煤

In order to pre pump coalbed methane for conflict prevention measures in the region, the effect of outburst detection technology needs to be further studied. How to compare and select a simple and reasonable evaluation index system is an important aspect of this work. Considering the pre pumping and outburst prevention measures in the region, the outburst prevention effect of eliminating outburst detection method should be adopted.

In recognized engineering practice, relevant evaluation should be met in large-scale test At the same time, the critical value theory needs to be further improved. The specific anti-interference effect is effectively used to eliminate the outburst detection technology to meet the needs of pre pumping CBM test. How to improve these technologies is even to explore new technologies and new research directions in this paper.

After the in-depth study on the coal mining and medium action theory, the pre structure is based on the in-depth study of the pre pumping and the influencing factors The fault tree model of outburst after coalbed methane drainage is built. Through the qualitative analysis of FTA, it is shown that the pre drainage effect has an objective evaluation on the influencing factors of the sudden increase of gas consumption. From the perspective of field engineering practice, the residual gas pressure, residual gas content, extraction rate, drilling gas desorption index and so on are elaborated, which highlights the effect of risk assessment pre comprehensive index on outburst extraction Based on the actual situation of the evaluation object and through systematic research and analysis, a complete technical system for the evaluation of outburst coalbed methane pre drainage effect is obtained.

The key words are: regional conflict prevention, CBM pre drainage, CBM drainage, gas drainage, gas drainage Gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, gas drainage, assessment, fault tree analysis (FTA).

中文翻译：

为本区域冲突预防措施预抽煤层气，突出检测技术的效果有待进一步深入研究，如何比较和选择一个简单合理的评价指标体系，是本工作的一个重要方面，考虑到区域内的预抽防突措施，应采用消除突检法的防突效果公认的工程实践中，在大面积试验应满足相关评价试验要求的同时，临界值理论有待进一步完善，有效利用具体的抗干扰效果消除突检技术，以满足预抽煤层气试验的需要，如何改进这些技术甚至是本文探索新技术、新的研究方向，对煤炭开采和介质作用理论，经过突出预抽及影响因素的深入研究，基于预先构造的煤层气抽采后突出故障树模型，通过fta定性分析表明，预抽效果对煤气消耗量突增排序的影响因素进行了客观的评价，从现场工程实践的角度，实际阐述了剩余瓦斯压力、残余瓦斯含量、抽采率、钻削瓦斯解吸指标等，突出了风险评价预综合指标对突出抽采效果评价的确定，并补充讨论了确定其敏感性阈值的理论，总结出建立评价指标体系的三个原则，结合评价对象的实际情况，通过系统的研究和分析，得出了突出煤层气预抽效果评价的完整技术体系关键词：区域冲突预防、煤层气预抽、煤层气抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯抽放、瓦斯，消除突发效应、评估、故障树分析（fta）。

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