Wood that is produced during the latter part of the growing season and is harder and less porous than springwood.
在生长期后期出产的木材,比春材更坚硬,少气孔。
SPF lumber is a distinctly white wood, with very little color variation between springwood and summerwood.
云杉-松-铁杉木材明显为白木材, 春木和秋木之间颜色差别非常小.
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