1) The heartwoods and leaves
心材与叶
2) black-heart
黑心<阔叶>材
3) ratio of core material and wall materials
心材与壁材比例
5) level difference between cores of impeller and housing
叶轮与外壳中心高差
6) heartwood
[英]['hɑ:twud] [美]['hɑrt,wʊd]
心材
1.
Characteristic and its utilization of heartwood of a tree;
树木心材的特点及其加工利用
2.
Studies on chemical constituents in heartwood of Taxus cuspidata;
东北红豆杉心材化学成分的研究
3.
Inhibitory effects of heartwood extracts from four decay-resistant tree species to white and brown rot fungi
4种耐腐性树种心材提取物抑菌作用的研究
补充资料：东北轻合金加工厂生产的铝合金挤压管材和空心材
东北轻合金加工厂生产的铝合金挤压管材和空心材
睽铝合;;:;;;、:;产的
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条