small coal

I found a small coal-black bird in the grass ．

我在草地上发现一只墨黑色的小鸟。

A 40 kg small coking oven test was made for to find suitable substitute coal kind through the basic characters analysis of weakly caking coal.

通过分析弱粘煤的基本特性，找出其适合替代的煤种，并通过40kg小焦炉实验和工业实验，确定了配煤方案。

However, a lot of problems faced with coal energy resource during the prospecting process, such as high resource consumption, low resource using rate; low resource call back rate, astonishing waste; uncontrollable small coal mine, serious improper prospecting.

然而，我国的煤炭资源在开发利用过程中却存在着不少问题：资源消耗高，资源利用率低；资源回收率低，浪费现象惊人；小煤窑发展失控，乱采滥挖现象严重。

It is on the basis of the township coal mine production trends thus predicted that this paper deals with the important role of coal in the entire energy system of this country, the significance of small coal mine closure and rectification and the arduousness of this task.

通过预测的产量变化趋势，阐明煤炭在我国能源中的重要地位，以及小煤矿关闭整顿的重要性和任务的艰巨。

On a small-sized combustion test rig for pulverized coal an experimental investigation was performed of the forced ignition characteristics of two types of pulverized coal-air flow under different conditions.

在一座小型煤粉燃烧试验台上，对不同条件下，两种煤粉气流的强迫点火特性进行了试验研究。

Study and Application on Gas Drainage Technology in Ultra Thin Seam of Small Coal Mine in Sichuan

四川小煤矿极薄煤层瓦斯抽采技术研究与应用

Intelligent Control System Based on Industrial PC for Middling and Small Coal Boiler

基于工控机的中小型燃煤锅炉智能控制系统

A Discussion on Township Small Coal Mine Coal Reserve Trend Inspection

关于乡镇小煤矿储量动态检测工作的探讨

Implementation of HSIC Control System for Middling and Small Coal Boiler

中小型燃煤锅炉仿人智能控制系统的实现

Technology Reform Is the Most Urgent Affair to Terminate Accidents at Small Coal Mine

技术改造是小煤矿杜绝事故的有效措施

The amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison

相比之下，人类活动燃烧煤、石油等所释放的二氧化碳要少一些。

Renewables account for only a small share of global primary energy consumption, which is still dominated by fossil fuels — 30% each for coal and oil, 25% for natural gas.

可再生能源在全球一次能源消耗中只占小部分份额，目前仍主要以化石燃料为依托，据统计，煤炭和石油的使用占30%，天然气占25%。

Renovation of Domestic Small Coal Dewatering Centrifuge for Recovering Coarse Coal Slime in Practice

改造国产末煤离心机回收粗煤泥的实践

A small coal fire burned in the grate.

炉子里生着小小的煤火。

The roboticized pug mill working under water-coal slurry which has the advantage of small-volume and less consumed energy can supersede the traditional mechanical churn-dasher.

液下搅拌机器人可取代传统的大型机械搅拌装置，具有体积小，能耗少等优点。

Benefit to environmental protection about low vacuum heating for thermoelectric plant in small coal mine

煤矿矸石热电厂低真空供热的环境效益

After the impoundment of Xiaolangdi Reservoir, the water of small coal mines threatened an Coal Mine.

小浪底水库蓄水后, 淹没区内小煤窑充水对新安煤矿形成较大危害.

Analysis and Administration of Fire-damp Gush into Small Coal Column Combined Mining Top Blasting Face

小煤柱综采放顶煤工作面瓦期涌出分析及治理

The amount of carbon dioxide released by human activities such as burning coal and oil is small in comparison.

相比之下，人类活动燃烧煤、石油等所释放的二氧化碳要少一些。

Research and Application for Axial Fans Used in Medium and Small Coal Mines

中小煤矿用轴流通风机的研制及应用

To do the township small coal mine coal reserve trend inspection well, duly and correctly inspect of coal reserve within approved range and if the mining beyond approved coal seam or boundary is essential to land and resources management.

做好乡镇小煤矿储量动态检测，及时准确核查检测小煤矿批准范围内的资源储量及是否存在越层越界现象，是国土资源管理的一项重要工作。

Construction Technology of Foundation Consolidation in the Excavated Region of the Small Coal Mine

小煤窑采空区钻孔灌浆地基加固施工技术