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Three Al-Si coating with different content were attained by changing adding of CrO _ 3 in slurry.
涂层制备时,在料浆中分别添加少量铬酐(CrO_3)、不添加铬酐(CrO_ 3)、添加较多量铬酐(CrO_ 3)得到了三种不同成分的Al-Si涂层.
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Only two places had been found where the river is low enough to cro.
在(现在)河水浅得可以通过的地方,只发现两处可以通过.
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Australopithecus, Cro-Magnon, Neanderthal are to name but three extinct species.
南方古猿人、克罗马尼翁人、尼安得特尔人是三种灭绝物种的名字。
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