“软木材”造句

床垫用软木材架子支撑着。
The mattress is supported on a softwood frame.

用材树种有两大类 -- 软木材与硬木材.
There are two main kinds of timber trees - softwoods and hardwoods.

钉子很容易地就穿透了软木材.
The nail easily penetrated the soft wood.

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