古县名。本西南夷地,西汉元封二年(公元前109年)置县。
裂叶榆 Ulmus laciniata ; laciniata ; Manchurian Elm ; ohyo-nire
李叶榆 Ulmus prunifolia ; prunifolia
宽叶榆绿木 Anogeissus latifolia
椭圆叶榆 Asiatic elm
榆叶梅 Prunus triloba ; Amygdalus triloba ; flowering plum ; triloba
阔叶榆绿木 axlewood
大叶榆 common elm
小叶榆 Ulmus minor ; ulmus parvifolia
硬叶榆 cedar elm
厚叶榆 cedar elm
本文探讨了分布在东北的春榆、大叶榆、黄榆等榆木人工干燥的特性和干燥工艺条件。
This paper describes the properties and technology condition of artificial drying of Ulms propinqua, U. laciniata, U. macrocarpa Wood.
一种北美落叶树(美洲榆),有双齿叶和双翼果,主要作为观赏性浓荫树,但常患荷兰榆树病而坏死。
A North American deciduous tree (Ulmus Americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.
如有查询,请与商务及经济发展局叶洁榆女士(电话:2810 3260)或许振坤先生(电话:2351 2631)联络。
For enquiries, please contact Ms Deanie Yip (Tel: 2810 3260) or Mr Simon Hui (Tel: 2351 2631) of Commerce and Economic Development Bureau.
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