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- Preservative law of harmful elements in coal of Late Permian Epoch and its environmental geological problems in Southern Guizhou Province 黔南晚二疊世煤中有害元素賦存規律及其環(huán)境地質(zhì)問(wèn)題
- This thesis introduces a simplified tail gas purge system, which functions to absorb the harmful elements in tail gas. 介紹了一套簡(jiǎn)易尾氣凈化系統,它可以吸收汽車(chē)尾氣中的有害成分,并且能循環(huán)使用而且節能。
- Since harmful elements in size, pastes and dyestuffs are deposited on fabrics, so that the harmful elements contents of grey and dyed fabrics are increased. 隨著(zhù)加工工序的增多,漿料及染料中的有害元素不斷地在織物上沉積,致使坯布、印染布上有害元素的含量增加。
- The analysis of harmful elements in iron making such as K_2O, Na_2O, ZnO, PbO with Quant A S software in 9800XP X-ray fluorescence spectrometer of Switzerland ARL Company is introduced. 介紹了石鋼應用瑞士ARL公司9800XP型X射線(xiàn)熒光光譜儀中QuantAS軟件對煉鐵生產(chǎn)中有害元素K2O,Na2O,ZnO,PbO的分析。
- A method for determining trace elements in coal flying ash cenosphere samples by inductively coupled plasma mass spectrometry(ICP-MS) was developed. 建立了一種電感耦合等離子體質(zhì)譜法測定粉煤灰漂珠中微量元素的方法,檢出限為0。
- Oxygen is a harmful element in Ni-base superalloy, which is usually the origin also the propagating passageway of fatigue cracks and will cause creep effect and affect the lasting strength. 氧在高溫合金中是作為有害雜質(zhì)元素存在的,通常是疲勞裂紋的萌生地及擴展通道,從而影響高溫合金的蠕變、持久強度等性能。
- During the combustion process of coal, the nitrogen element in coal may turn to various oxides of nitrogen, thereby, resulting in ambient pollution. 煤中氮元素在煤燃燒過(guò)程中會(huì )轉化為各種氮的氧化物,從而造成環(huán)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. 由于分析樣品分布不均和采用的測試方法各不相同,本文的數據還不能準確地代表中國煤中微量元素的平均豐度值。
- 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. 另外應用元素地球化學(xué)理論可以探討成煤作用,一些微量元素可以用作煤層對比標志,微量元素對煤炭開(kāi)采、加工、利用等方面都將產(chǎn)生影響。
- I'm out of my element in political discussions. 我不喜歡參加政治討論。
- 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. 綜合采用離峰背景校正法及干擾系數校正法消除各種干擾對測定的影響,電感耦合等離子體發(fā)射光譜法測定煤及煤灰樣品中21個(gè)主次量及微量元素。
- France has fallen behind (Germany) in coal production. 法國在產(chǎn)煤方面落後(於德國)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. 同一礦區晚二疊世煤的稀土元素配分模式具有一定的相似性，而不同地區晚二疊世煤的稀土元素配分模式則差異較大。
- Self-help is an important element in therapy for the handicapped. 傷殘人士在治療中，自助自立是個(gè)重要因素。
- He bought in coal for the winter. 他購買(mǎi)了大量的煤過(guò)冬。
- Titanium was the most harmful element to the machinability. 隨流孕育對缸體材質(zhì)的穩定達標起到了保證作用；
- Abundance of Trace Elements in Coal of China 中國煤中微量元素的豐度
- Canada used to be rich in coal deposits. 加拿大曾經(jīng)盛產(chǎn)煤礦。
- We must include this chemical element in the group. 我們必須使組里包括這種化學(xué)元素。
- This part of country is rich in coal. 這個(gè)地區盛產(chǎn)煤。
