The steep ruggedness of the volcanic terrain made this work very difficult; it required picks, sledgehammers, and a lot of sweat.
由于火山地形险峻陡峭，他们的活干得很艰难，十字镐和重锤都要派上用场，而且汗流浃背。
The main rocks types of the late Jurassic volcanic rocks in Genhe terrain, Daxinganlin are volcanic lava and volcanic rubbishy rocks.
大兴安岭根河岩区晚侏罗世火山岩岩石类型主要为火山熔岩及火山碎屑岩。
The main rocks types of the late Jurassic volcanic rocks in Genhe terrain, Daxinganlin are volcanic lava and volcanic rubbishy rocks.
大兴安岭根河岩区晚侏罗世火山岩岩石类型主要为火山熔岩及火山碎屑岩。
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