In order to use the fiber resource of oil palm leaves,chemical components and fiber morphology of oil palm leaf have been analyzed;Kraft,soda-AQ,neutral sulfite and alkaline sulfite-AQ cooking have been carried out;beating performance and sheet properties of the pulps have been tested.
为了利用棕榈叶纤维资源,分析了棕榈叶的化学组成和纤维特性,进行了棕榈叶的硫酸盐法、烧碱-AQ法、中性亚硫酸盐法和碱性亚硫酸钠-AQ法制浆的试验,检测了蒸煮所得的4种纸浆的打浆性能和纸页的性质,并用中性亚钠-AQ浆与废纸浆配抄瓦楞原纸。
The optimum conditions of crystallization technology of chloramphenicol palmitate of crystal type B (mp 86~91℃) was investigated.
对棕榈氯霉素结晶工艺进行了摸索研究 ,确定了由生理无效型 A晶型转化为生理有效型 B晶型工艺的最佳条件 ,获得了符合中国药典 1995年版、BP93版标准的产
Leaf strips of any of these plants, used in weaving.
用于编织的小棕榈叶片条
a village hut thatched with palm leaves
用棕榈叶作顶的乡村小屋
A Brazilian palm tree(Copernicia prunifera)having densely waxy, fan - shaped leaves and toothed leafstalks.
巴西棕榈树一种巴西棕榈树,(巴西棕榈树巴西蜡棕属),有浓密的蜡质扇形叶和齿状叶柄
The sweet sap of several tropical Asian palm trees, especially palmyra and Caryota urens, used as a beverage.
棕榈汁几种亚洲热带棕榈树,尤其是扇叶树头榈和椰子树棕榈上的甜汁液,用作饮料
"Carnauba wax: Very hard wax obtained from fronds of the carnauba tree, Copernicia cerifera, a fan palm of Brazil."
巴西棕榈蜡: 从巴西产的扇状棕榈巴西棕榈树叶子上得到的非常坚硬的蜡。
All trees except palms are dicotyledons.
除了棕榈树,所有的树都是双子叶植物。
small genus of South American feather palms.
产于南美的一个棕榈植物小属,叶羽状。
Central and South American feather palms.
中美和南美产的一个羽状叶棕榈属。
Most palms have a bunch of large leaves at the top.
大多数棕榈树顶部都有一束大叶子。
monotypic genus of palms of Australasia.
澳大拉西亚一个单子叶棕榈树属。
a monocotyledonous genus of graceful palm trees in tropical America.
热带美洲一种优美的单子叶棕榈属。
West Indian palm with leaf buds that are edible when young.
西印度一种嫩叶芽可食的棕榈。
American dwarf fan palms.
美洲矮小扇叶棕榈植物的一个属。
small to medium-sized fan palms.
小型至中型扇叶棕榈的一个属。
unarmed feather palms of central and northern South America.
南美中部和北部羽状叶棕榈的一个属。
attractive East Indian palm having distinctive bipinnate foliage.
东印度棕榈科大乔木,二回羽状复叶。
leaf fibers of the raffia palm tree; used to make baskets and mats etc..
酒椰棕榈树叶的纤维,用作制帽和篮等。
a monocotyledonous genus of tropical American palm trees.
一个美洲热带单子叶棕榈属。
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号