瓦斯墊層 的英文怎麼說

中文拼音 [diàncéng]
瓦斯墊層 英文
gas cushion
  • : 瓦動詞(蓋瓦) tile; put tiles on a roof; cover (a roof) with tiles
  • : Ⅰ名詞(古代驅疫時用的面具) an ancient maskⅡ形容詞[書面語] (醜陋) ugly
  • : Ⅰ動詞1 (用東西支、鋪或襯 使加高、加厚或平正) put sth under sth else to raise it or make it leve...
  • : i 量詞1 (用於重疊、積累的東西 如樓層、階層、地層) storey; tier; stratum 2 (用於可以分項分步的...
  • 瓦斯 : [采礦工程] gas; mashgas瓦斯爆炸 gas explosion; 瓦斯濃度 gas density; 瓦斯燃燒 gas combustion; 瓦斯筒 gas cylinder
  1. For the tectonic coal , the properties of higher porosity and lower permeability make it capable of keeping higher gas pressure ; both of the “ isolating action ” and “ gas - cushion action ” cut down the resistance against outburst ; the specifity of high - defomed - extent makes desorption , escape and flowing quickly become possible ; the existing of weak - seam or “ thoroughfare - seam ” create suitable conditions for the initial erupting and continued developing of coal and gas outburst. on the whole , it is the synhesis action of all factors , which leads to outbursts. the existing of tectonic coal with certain thickess is the essential condition of coal and gas outbursts , but not the sufficient condition

    高空隙率、低透氣性使構造煤能夠保持較高的壓力;破碎性、 「隔離」作用及「氣」作用,使構造煤抵禦外力作用的能力大大降低;構造煤變形幅度大的特性,為的迅速解吸、放散和快速流動創造了條件;構造煤薄弱分或「通道」的存在,則為煤與突出的初始激發和持續發展奠定了基礎;上述因素的共同作用,影響和制約了煤與突出的強度和分佈.盡管如此,一定厚度的構造煤的存在只是發生煤與突出的必要條件和有利條件,而非充分條件
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