coal seam什么意思？

coal seam的音标：coal seam的英式发音音标为：[kəul si:m]coal seam的美式发音音标为：[kol sim]...

The average UK coal seam is one metre thick.英国煤层的平均厚度为1米。Coal Mine, its coal seam is easily spontaneous fire.大雁二矿煤种为褐煤, 属易自燃发火煤层.Factors affected coal seam permeability change and its law is analyzed.分析了煤层透气性变化的影响因素及变化规律...

cut across的音标：cut across的英式发音音标为：[kʌt ə'krɔs]cut across的美式发音音标为：[kʌt ə'krɔs]...

n.环辛烯...

A dog wiggles his tail.狗摇尾巴.To the toad, the garden is a worm that wiggles , a bug that flies.对蟾蛤来说, 花园只是一条蠕动的软体虫, 一只飞舞的昆虫.And it wiggles and jiggles, but don't eat it.看着它摇晃舞动, 但是不能吃下去....

For years, blatantly false assertions have gone unchallenged...多年来，一些明显错误的断言都没有受到质疑。They will not allow your more way-out ideas to pass unchallenged.他们不会放过你这些古怪的念头的。...the man who has led his party unchallenged for over ...

...a book of children's verse, which ranged from the barely tolerable to the utterly dire.一本儿童诗歌集，其中有的能勉强接受，而有的简直是糟透了。The company is in dire straits.公司处于极度困难的境地.They deprived a large number of the overseas Chinese o...

中间圈包括岩流圈以下地幔的其余部分.The mesosphere comprises the rest of the mantle below the asthenosphere....

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collage的现在进行时为：collaging...

Magistrates ordered his dog Samson to be put down immediately.治安官们勒令立即将他的狗萨姆森杀掉。Samson and his men complain sometimes, of being exhausted.参孙和他的部下有时抱怨说太累了.'I call myself the Samson of the firewood guillotine.“ 我把我自己叫...

“碳化”的拼音为：...

All these definitions, while sounding impressive, do not stand up under close scrutiny.所有这些定义虽然听上去煞有其事，但都经不起推敲。Definitions in this dictionary are printed in roman type.这本词典里的释义是用罗马体印刷的。Write clear definitions in order to...

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“一大堆”的拼音为：yī dà duī...

“原意”的拼音为：yuán yì...

n.寡头政治执政者...