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- associated elements in coal 煤中伴生元素
- A method for determining trace elements in coal flying ash cenosphere samples by inductively coupled plasma mass spectrometry(ICP-MS) was developed. 建立了一种电感耦合等离子体质谱法测定粉煤灰漂珠中微量元素的方法,检出限为0。
- During the combustion process of coal, the nitrogen element in coal may turn to various oxides of nitrogen, thereby, resulting in ambient pollution. 煤中氮元素在煤燃烧过程中会转化为各种氮的氧化物,从而造成环境污染。
- According to the strata about the trace elements in coal of China,the different background value of trace elements in different parts of China were d rew out. 由于分析样品分布不均和采用的测试方法各不相同,本文的数据还不能准确地代表中国煤中微量元素的平均丰度值。
- Moreover the geochemistry of trace elements in coal could be used to explain the coalification,and some elements as special marker could be used to compare the coal beds. 另外应用元素地球化学理论可以探讨成煤作用,一些微量元素可以用作煤层对比标志,微量元素对煤炭开采、加工、利用等方面都将产生影响。
- I'm out of my element in political discussions. 我不喜欢参加政治讨论。
- A method for the determination of 21 major,minor and trace elements in coal and coal ash samples by inductively coupled plasma-optical emission spectrometry(ICP-OES) was reported in this paper. 综合采用离峰背景校正法及干扰系数校正法消除各种干扰对测定的影响,电感耦合等离子体发射光谱法测定煤及煤灰样品中21个主次量及微量元素。
- Observation Points and associated element in process model 观察点及流程模型中相关的元素
- France has fallen behind (Germany) in coal production. 法国在产煤方面落後(於德国)了。
- Distribution patterns of the rare-earth element in coal are similar for the coals from the same district, and different for the coals of different districts. 同一矿区晚二叠世煤的稀土元素配分模式具有一定的相似性，而不同地区晚二叠世煤的稀土元素配分模式则差异较大。
- Self-help is an important element in therapy for the handicapped. 伤残人士在治疗中，自助自立是个重要因素。
- Abundance of Trace Elements in Coal of China 中国煤中微量元素的丰度
- He bought in coal for the winter. 他购买了大量的煤过冬。
- We must include this chemical element in the group. 我们必须使组里包括这种化学元素。
- The number of elements in a finite group. 次数一个有限群中的元素个数
- The number of elements in a finite set. 指数有限数列中元素的数量
- Canada used to be rich in coal deposits. 加拿大曾经盛产煤矿。
- This part of country is rich in coal. 这个地区盛产煤。
- Ore potential and modes of occurrence of associated elements in lower Cambrian black shale of Western Zhejiang 浙西寒武系底部黑色岩系含矿性和有用组分的赋存状态
- Liaoning abounds in coal and iron. 辽宁盛产煤和铁。
