Study on the Birch Veneer Dyeing Technologies of the Color Fastness to Water;
染色工艺对染色桦木单板耐水牢度的影响
The Properties of Small Diameter Birch Timber Driedunder Different Conditions;
不同干燥条件下小径桦木材性指标的研究
Study on bonding properties of larch Birch and Oak Glue-laminated timber with API adhesive;
落叶松、桦木和柞木集成材胶接性能的研究
Determination of Discoloration Types and of Chemical Components during Discoloration of Asian White Birch;
白桦木材的变色类型及变色前后化学成分分析
The Preliminary Study on Drying Process Traverse Strains of Asian White Birch;
白桦木材干燥过程横纹流变特性的初步研究
RAPD technique was used to detect the genetic relationship among seven Betula species.
由于种间杂交更容易发生在亲缘关系较近的种间 ,为此 ,对桦树种间亲缘关系的分析 ,是进行种间杂交的前提 (王明庥 ,1 988)。
Drying Technology of Small Diameter Slice of Ribbed Birch;
硕桦小径木圆截片常规干燥工艺初探
Birch sap, as a natural resources, has been exploited.
本文从桦汁的采集时间;采集方法;收尾工作;桦汁产量;采汁对树木生长的影响;采汁的经济及社会效益;桦汁的成份,可食性,毒理分析和保健作用;桦汁加工利用;桦汁真伪鉴别和桦汁保鲜;共十个方面介绍了国内外研究的最新成果,及其存在的问题,并对解决这些问题的思路设想及桦汁开发的发展方向,提出了一定的见解。
a genus of trees of the family Betulaceae (such as birches).
桦木科的一个乔木属（例如桦树）。
Selective oxidation of betulin for betulinic acid preparation
非金属选择性催化氧化桦木醇制备桦木酸
The reality wood flat floor takes wood assortments such as birch, oak wood, elm, color wood as raw material.
实木平板地板以桦木、木、木、木等材种为原材料。
a smooth leather tanned with willow, birch, or oak, and scented on the flesh side with birch oil.
一种光滑的皮革，经过柳木、桦木、橡木硝制，内壁用桦树油加上香味。
well-seasoned oak, birch, etc
充分风乾可用的栎木、 桦木等.
alder: tree of the birch family,usu growing in marshy places
桤木（桦木科,通常生长于沼泽地带）.
Preliminary Study on Betulinic Acid and Betulin Derivatives' Anti-cancer Acitivity and Mechanism in Inducing Cell Apoptosis
桦木酸及桦木醇衍生物抗癌活性和诱导凋亡机理初步研究
He used a piece of birch to make a small boat.
他用一块桦木做一只小船。
PHYLOGENY AND PHYTOGEOGRAPHY OF THE BETULACEAE
桦木科植物的系统发育和地理分布
PHYLOGENY AND PHYTOGEOGRAPHY OF THE BETULACEAE (CONT.)
桦木科植物的系统发育和地理分布(续)
Effects of Agents on Bleached Birch Veneers and the Light Fastness
助剂对桦木单板漂白与耐光性的影响
The reality wood flat floor takes wood assortments such as birch , oak wood , elm , color wood as raw material.
实木平板地板以桦木、柞木、榆木、色木等材种为原材料。
Relationship between Total Phenol in White Birch Wood and Wood Rot Fungi
白桦木材中总酚含量与抗木材腐朽菌的关系
Comparison of the Decaying Ability to White Birch Wood among Four Wood Rot Fungi
4种木材腐朽菌对白桦木材降解能力的比较
He experiments with a vast range of woods, including Baltic birch and black walnut.
他还尝试用各种木材来制作，比如桦木和黑胡桃木等。
any betulaceous tree or shrub of the genus Betula having a thin peeling bark.
桦属的任何一种桦树或灌木,有薄的剥落的树皮。
any shrub or tree of the genus Grevillea.
任何属于银桦属的灌木和树。
The Indians peeled the bark from birch trees to make canoes.
印地安人从桦树剥下树皮做独木舟。