coal的例句大全

A coal fell from the fire and burned the carpet.

一块煤从火炉上掉了下来,烧着了地毯.

Coal is formed from the remains of freshwater plants.

煤是由淡水植物遗骸形成的.

to stoke up a fire with more coal

往火里再添一些煤

The fossil fuels (coal and oil) are finite resources.

化石燃料（如煤和石油）属于有限资源。

Highly explosive gas is naturally found in coal mines.

煤矿中天然存有高爆气体。

The bulk and weight of coal required in the majority of manufacturing industries is large in comparison with the bulk and weight of other raw matericals.

在大多数制造工业中,所需要的煤的体积和重量,与其他原材料的体积和重量相比都显得很大.

Germany, however, insists on restrictions on the import of Polish coal.

但是德国坚持对进口波兰煤炭加以限制.

Drilling gas and extraction by fool wearing layer is a kind of important ways for solving the coal gas.

底板穿层钻孔预抽瓦斯是解决煤矿瓦斯的一种重要途径。

The explosiveness of four kinds of coal has been determined by testing two parameters, the lower explosion limit and the length of return fire.

该试验通过测定爆炸下限与返回火焰长度这两个参数来确定4种煤粉的爆炸性。

Flame retardant selection and inflaming retarding principle are researched on winding cementing system of compound oxygen cylinder used for coal mine safe.

研究了煤矿安全用复合式氧气瓶缠绕胶接体系中阻燃剂的筛选及阻燃机理。

Analysis of force and geometrical sizes of impact coal cutter's flat pick

冲击式采煤机刀齿受力分析及其几何参数的确定

Determination on designing productive rate of coal cutter

采煤机设计生产率的确定

Application of Coal Cutter's Cutting Pan Translation Technique

采煤机割盘改造技术的应用

Probe into the Rational Use of the Hydraulic Oil of the Coal Cutter

采煤机液压油合理使用的探讨

Industrial Usage and Performance Analysis of MG300/ 690 W Type Coal Cutter

MG300/690W型采煤机的工业使用及性能分析

Study on Improvment of Heat Curing of Coal Ash Cement Bonded Particleboard

粉煤灰水泥刨花板热养护工艺改进的研究

Coal field seismic prospecting in loess plateau or complicated loess topographic area needs going on the research of crook seismic working technology along channel.

在黄土塬区或复杂的黄土地形区作煤田地震勘探工作需要进行沿沟弯线地震施工技术的研究。

Cause of coal crusher motor frequency troubles and its countermeasure

磨煤机电机频繁故障原因分析及对策

Approach on break crossover point diastrophism direction of break coal intersecting line drawing in complex structure area

复杂构造区断煤交线绘制法中断裂交点错动方向的探讨

Study on Wear Resistance of Composite Alloy Reinforced with Hard Alloy Grains for Coal Crusher

磨煤机用硬质颗粒增强复合合金材料的耐磨性