这段英文存在语法错误和表述不清的问题。以下是为您修改和翻译后的内容： The heavy logging equipment is at work in the winter taiga. A forwarder, loaded with sawn wood, descends from a steep slope of a snowy mountain where coniferous trees are harvested. 在冬季的泰加林，重型伐木设备正在作业。一辆装载着锯好木材的集材车从积雪覆盖的陡峭山坡上下来，那里正在采伐针叶树。

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