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- In the middle stage of coal metamorphism increase of the confining pressure will increase to a certain extent the strength of coal. 在中煤級階段，雖然圍壓的增大可在一定程度上提高煤的強度，但溫度的影響更為重要。
- This is a model of telemagmatic metamorphism and a character of coal metamorphism early-middle Jurassic in northwest of China. 屬于區域巖漿熱變質(zhì)作用的一種模式，也是西北地區早中侏羅世煤變質(zhì)的特點(diǎn)之一。
- Reported the characteristics and evolution of coal metamorphism in Shuanghua coalfield,specially calculated paleo temperature,determined the coking coal is the magmatically metamorphosed coal. 論述了雙樺煤田煤變質(zhì)特征及其演化，分析了影響煤變質(zhì)的主要因素，估算了古地溫，確認巖漿熱變質(zhì)是形成焦煤的主要作用形式，為在該煤田尋找焦煤指出了方向。
- The research shows that the thermal expansion and fragmentation of coal particles mainly occur in the stage of devolatilization during the coal combustion. 研究表明，煤顆粒在燃燒過(guò)程中其熱膨脹破碎主要發(fā)生在揮發(fā)分析出階段；
- She did the first stage of the trip by train. 她行程的第一段是乘火車(chē)的。
- We need to replenish our stocks of coal. 我們需要再次補充煤的儲備。
- Prohibition was laid on the export of coal. 禁止煤炭輸出。
- He quitted the stage of politics. 他退出了政治舞臺。
- He put a shovel of coal on to the fire. 他往火爐里加了一鏟煤。
- They set out on the last stage of their journey. 他們開(kāi)始了旅行的最后一程。
- We had a big delivery of coal today. 今天我們收到大批訂購的煤。
- Regardless of the different sizes of coal particles, they all tended to break at the stage of devolatilization.It was even easier for coal particles to break if they contain high volatilize materials. 對于不同的煤顆粒來(lái)說(shuō),揮發(fā)分析出的階段是顆粒最容易發(fā)生破碎的階段,含高揮發(fā)分的煤樣在實(shí)際的燃燒破碎中更容易發(fā)生膨脹破碎。
- The country is short of known deposits of coal. 這個(gè)國家缺少已知的煤礦礦床。
- Probe into The Law of Coal Metamorphism in Xinzheng Mining Area 新鄭礦區煤變質(zhì)規律探討
- Following the embryonic stage of development. 胚胎后期的在胚胎發(fā)育期之后的
- An inexhaustible supply of coal. 用之不竭的煤炭供應
- In the last stage of the race, her tiredness began to tell on her. 在賽跑的沖刺階段，她開(kāi)始顯得筋疲力盡了。
- China has a wealth of coal, iron and other minerals. 中國有豐富的煤、鐵和其它礦產(chǎn)資源。
- This is the second stage of cognition. 這是認識的第二個(gè)階段。
- The oven holds sufficient heat to fire up a fresh charge of coal. 爐里有足夠的熱量使新加進(jìn)的煤燃燒起來(lái)。
