桦木

An inflorescence consisting of a dense spike or raceme of apetalous, unisexual flowers, as in Salicaceae and Betulaceae; an ament.

柔荑花序 Catkin 由无被单性花组成的密集的穗状或总状花序，如杨柳科和桦木科。

One is the effect of LT crack of wood on wood transverse bending property. Birch, ash tree, walnut are studied, and it appears that under the bending loads the bending strength of the beam with crack will decrease, but not obviously .

第一部分研究了木材LT型裂纹对木材横纹理弯曲性能的影响，在对桦木、水曲柳、核桃楸的研究中，发现含LT型裂纹的横梁在弯曲载荷的作用下，其弯曲性能会有一定程度的下降，但降幅并不明显。

The tree species have greater impact on primary physical and mechanical property of LVL beams, Birch LVL beams have better property than basswood LVL beams.

其主要物理力学性能受树种的影响较大，桦木LVL梁的主要性能均优于椴木LVL梁。

Mechanical properties including the density MOR, MOE, shearing strength of birch and basswood LVL beams made by the bi-frequency hot press were tested by universal strength testing machine. The primary failure modes were discussed when LVL beams suffered the flexural and level shearing load.

在万能力学试验机上测试由高频热压方法制造的桦木和椴木单板层积梁的密度、静曲强度、弹性模量和水平剪切强度等力学性质；讨论LVL梁受弯曲、水平剪切载荷时的主要破坏形式并得出相关结论。

Alder trees belong to the birch family.

赤杨属于桦木科。n。藻类，海藻

But I was a birch tree, I was a lizard.

我曾是桦木，曾是蜥蜴

He used a piece of birch to make a small boat.

他用一块桦木做一只小船。

Objective To assay the carcinogencity of water and organic extracts of birch wood dust.

目的 检测桦木尘水提取液和有机提取液的致癌性。

Soft soled moccasins became essential for kneeling in birchbark canoes, and for walking with rigid snowshoes.

软底马克辛鞋在划桦木独木舟和套上僵硬的雪鞋时就成了必要的了。

Professional Hearing Services has opened in the Birchwood Medical Center to evaluate, fit, and dispense hearing aids .

专业听力服务已开放的桦木医学中心评估，适当，并免除助听器。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了