椆是一个木字旁的汉语，一般作名词使用，可指古时的一条河，也可指一种树。
运输代理，包括空中和地面货运代理，船运协会和运输经纪人。 椆。
Transport agencies include air and surface freight forwarders, shippers' associations and transport brokers.
实验结果表明：这五种阔叶树材干燥特性差异显著，其中椆木干燥缺陷严重，干燥速度缓慢；
The results of the experiment showed that the differences among the five species are obvious. The drying defects of Lithocarpus glaber were serious and its drying rate was slow;
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