... 爆炸点空气密度 burst point air density 干空气密度 density of dry air 排风空气密度 p ...
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Meanwhile, there were not significant differences in wood air dry density, mechanical strength and cell wall percentage of intra provenance.
种源内木材气干密度、力学强度及胞壁率差异不显著，管胞长、宽和壁厚的差异均显著且高于种源间的差异。
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