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。
Fiber strength depended on the dry weight per fiber length, content of cellulose, thickness of cell wall, maturity, density of cell wall and other sub-factors.
纤维强度是由单位纤维干重、纤维素含量、胞壁厚度、成熟度及胞壁结构密度等亚性状决定的。
The pre-discharge not only eliminates partial wall charges but also increases density of priming particles which help the coplanar-type discharge start at a lower cell voltage.
此“ 先期放电”不但清除了部份的壁电荷还增加空间中带电荷粒子数量并使得其后产生的维持放电可于较低电压时开始。
The pre-discharge not only eliminates partial wall charges but also increases density of priming particles which help the coplanar-type discharge start at a lower cell voltage.
此“ 先期放电”不但清除了部份的壁电荷还增加空间中带电荷粒子数量并使得其后产生的维持放电可于较低电压时开始。
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