Used for corundum bricks, mullite bricks, silicate bricks masonry in blast furnaces, hot air stoves.用于高炉 、 热风炉砌筑刚玉砖、莫来石砖 、 硅线石砖 、 低蠕变高铝砖.Hardness than corundum, abrasive easily broken, sharp edges and corners, good cutti...
Used for corundum bricks, mullite bricks, silicate bricks masonry in blast furnaces, hot air stoves.用于高炉 、 热风炉砌筑刚玉砖、莫来石砖 、 硅线石砖 、 低蠕变高铝砖.It is considered that the deposit is an anatectic migmatite corundum deposit.研究认为,本...
她听到轮胎轧过石子铺成的车道，发出嘎吱声。She heard the crunch of tires on the gravel driveway.脚踩着雪发出的嘎吱嘎吱声the crunch of feet on snow汽车快速驶过拐角时，轮胎又一次发出嘎吱声。The car's tires squealed again as it sped around the corner....
BPA ( brooks parsimony analysis ) is one of the most popular methods in the study of historical biogeography.BPA ( brooksparsimonyanalysis ) 是历史生物地理学研究的重要分析方法之一,在过去的20年内得以发展和完善....
Some of the older telephones still only accept tokens.一些较老式的电话机仍然只收代币。Coin-operated telephones took 100, 200 and 500 lire coins.投币电话接受100，200和500里拉的硬币。All our rooms have direct dialling telephones.我们所有的房间都有直拨电话。...
It rapidly became apparent that rock'n'roll was a very broad church indeed.摇滚乐实际无所不包，这一点很快就显而易见了。The person may become dizzy for no apparent reason.这类人可能会莫名其妙地感到头晕。The presence of a star is already apparent in ...
Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.Plasma - polymerization of ethylene gives films of complex, uncertain structure.乙烯的等离子聚合得到复杂的, 无固定结构的薄膜.In...