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- The paper had a coal water mixture test with vitrain coal, bright coal and dull coal from Ningtiaota coal in Shenfu mining area. 选择神府矿区柠条塔煤中的镜煤、亮煤和暗煤进行了制水煤浆试验。
- No.39 coal is one of high-metamorphism anthracite with black color and near-metallic luster in which semibright coal and semidull coal are dominant lithetype and there is a little dull coal. 大田水井坑井田39号煤层属高变质无烟煤,灰黑色至黑色为主,似金属光泽,宏观煤岩类型以半亮型和半暗型为主,少量为暗淡型;
- The Formation and Prevention of Dull Coal Reserves 生产矿井呆滞煤量的形成及预防措施
- The dull play seemed to last an eternity. 这场乏味的剧似乎演个没完没了。
- Market dull and slacken no business report. 市场萧条胩衰退，没有有关交易的报道。
- The absence of color in that drawing make it dull. 那幅画因没有着色而显得晦暗。
- The dying fire was throwing out a dull red light. 将要熄灭的火发出暗红色的光。
- Keywords type of coal petrology;bright coal;dull coal;briquettability; 煤岩类型;光亮煤;暗淡煤;成型特性;
- The old man's life became dull and colorless. 老人的生活变得呆板无趣。
- I feel a dull pain in the stomach. 我觉得胃部隐隐作痛。
- A person regarded as ungainly or dull witted. 愚笨的人被认为是笨拙的或弱智的人
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- He couldn't teach such dull children. 他教不好这样呆笨的孩子。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- He felt a dull ache in his shoulder. 他感到肩膀隐隐作痛。
- He is rather dull in comparison with others. 和别人比较起来，他相当迟钝。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- She took drugs to dull the pain. 她吃了药以减轻疼痛。
- All work and no pay makes Jack a dull boy. 只有工作无工资，杰在也得变蠢才。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
以上内容独家创作，受著作权保护，侵权必究
海词词典，十七年品牌
