“soft rock”的概念、定义、翻译、参考文献-科学参考

单词	soft rock
释义	soft rock [`sȯft `räk] ^{MINING ENGINEERING} Rock that can be removed by air-operated hammers, but cannot be handled economically by a pick. ^PETROLOGY 1. A broad designation for sedimentary rock. 2. A rock that is relatively nonresistant to erosion.
随便看	spoil bank spoil dam spoiler spoil heap spoke spokeshave spondylitis spondylolisthesis sponge sponge gold sponge grease sponge iron sponge metal sponge rubber spongework Spongiidae Spongillidae spongin spongioblast spongiocyte Spongiomorphida Spongiomorphidae spongocoel spongolite spongolith

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