mechanical den
英 美
机械窖
... 干内粉 Meat meal 机械窖 mechanical den 混合物 Mechanical mixture ...
Two kinds of big sympodial bamboo, Dendrocalamus yunnanicus Hsueh and Den. membraanaceus and their physical and mechanical properties have been studied in the paper.
研究了两种最重要的丛生竹种云南黄竹和龙竹的物理和化学性能。
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