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ash yield of raw coal 原煤灰分
Factors such as buried depth,volatile matter of raw coal,water content and ash content in raw coal can produce influence upon gas content to some extent. 分析认为:研究区煤层气含量各煤层差异性较大,埋深、原煤挥发分、原煤水分、灰分产率等因素对煤层气含量均有一定的影响。
We contracted with the company for a supply of raw coal. 我们与该公司签订了供应原煤的合同。
By changing the kind of raw coal,oil amount,particle size of the coal and stirring time,several experimental methods for removal of ash with selective oil agglomeration were performed. 结果表明:变质程度较高的煤种更有利于团聚,随着油用量、原煤解离程度及搅拌时间的增加,以及团聚物的粒度增加,精煤的灰分降低。
In preferable deashing conditions, the ash yield of the anthracite was reduced to 0.05%, and the deashing rate reached 99.3%. 在较优工艺条件下，可将煤的灰分脱至0.;05%25，脱灰率高达99
The factors affecting the yield of trichloroaniline are reaction temperature, reaction time, and the mole ratio of raw materials. 通过实验考察了反应温度、反应时间、滴加时间及物料比等因素的影响。
The effects of solvents and its content,reaction time and the mole ratio of raw materials on the yield of p-nitrophenyl isocyanate were studied. 以三光气和对硝基苯胺为原料,合成对硝基苯异氰酸酯,考察了溶剂及用量、反应时间和原料配比对收率的影响。
Since 2000, we have recycled carbon black off-gas instead of raw coal as fuel for coal tar process and power plant . 从2000年起将炭黑尾气全部回收作为煤焦油加工生产线和发电厂锅炉用燃料，代替原煤。
A great amount of raw coal were consumed for Shanxi coal chemical industry and coking industry every year. 山西煤化工及炼焦工业年消耗大量煤炭资源,生产过程中,资源浪费极大。
The conversion, the utilization rate of raw materials and the product yield of esterification reactions are raised by applying the catalytic rectification process. 摘要催化精馏技术应用于酯化反应体系，提高了反应的转化率、原材料利用率和产品收率。
The quick determination of ash yield of commercial coal in Aiyou Mine 阜新艾友矿动力商品煤灰分快速测定方法
The coal sector produced 980 million tons of raw coal,down 11.9% on that of 1998. The severe contradiction of oversupply in the coal sector has been relieved to some degree. 煤炭行业生产原煤9.;8亿吨，比1998年减少11
The coal sector produced 980 million tons of raw coal, down 11.9% on that of 1998. The severe contradiction of oversupply in the coal sector has been relieved to some degree. 煤炭行业生产原煤9.;8亿吨，比1998年减少11
These trees gave a high yield of fruit this year. 这些果树今年获得了大丰收。
The results indicate that maximum reflectivity of vitrinite from treated coal is higher than that of raw coal and increases with the hydrothermal treatment temperature. 结果表明，水热处理提高了煤的镜质组反射率，水处理温度越高处理煤的镜质组反射率越大；
The intrinsic properties of raw coal gangue were characterized by use of modern testing such as X-ray diffraction(XRD),infrared(IR) and petrographic analyses. 通过XRD、IR等方法,表征了未活化煤矸石的本征特性,在未活化煤矸石胶凝性能的基础上,研究了热活化、机械活化、化学活化方法对煤矸石潜在活性的激发作用。
Take coal output for example.In 1978 the total amount of marketable coal mined in the United States was in excess of 599 million tons,and the output of raw coal in the Soviet Union was 724 million tons. 例如煤产量，一九七八年，美国商品煤五亿九千九百多万吨，苏联原煤七亿二千四百万吨。
The total yield of such produce in a particular season or place. 收成在某一季节或地区该类产品的总产量
The factory is in frequent scarcity of raw materials. 这个工厂经常原料不足。
Take coal output for example.In 1978 the total amount of marketable coal mined in the United States was in excess of 599 million tons, and the output of raw coal in the Soviet Union was 724 million tons. 例如煤产量，一九七八年，美国商品煤五亿九千九百多万吨，苏联原煤七亿二千四百万吨。