查询词典 birch beech

See " From the Aspen and Birch Trees " for more information.

请看"来自白杨和桦树"以的信息。

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。

The main raw materials have Paulownia, poplar wood, Neem wood, pine, basswood, birch, MDF, plywood and other multi-storey.

主要的原材料有桐木、杨木、楝木、松木、椴木、桦木、密度板、多层合板等。

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。

Senator Birch Bayh of Indiana pulled Mr. Kennedy from the plane.

印第安纳州参议员伯奇贝赫把肯尼迪拉出飞机。

A Brazilian producer emphasized that the lack of birch pulp in Europe is not the only reason for the strong demand for South American-produced BEK.

一个巴西生产商强调缺乏桦树黏浆状物质在欧洲不是强烈的需求的唯一的原因对南部美国被生产的BEK。

The market is good for papermaking, including woodfrees in Europe and worldwide, and BEK demand would be good in Europe this year even without the birch pulp shortage, he said.

市场为造纸是好，包括woodfrees在欧洲和全世界，没有桦树黏浆状物质短缺，并且BEK需求今年是好在欧洲，他说。

We analyse the adjustment of the birch reeds to the cold and drought from the conductance, K+ filtrate, SOD, POD, MDA, content of the water-soluble protein, penetration of the bioplasm film, photosynthesis and fluorescence.

3通过对欧洲优良无性系在寒冷、干旱的胁迫下电导率、钾离子的渗透率、酶促防御系统，膜质过氧化物，可溶性蛋白含量、原生膜透性和光合、荧光等生理指标的变化，对欧洲白桦优良无性系苗期的适应性进行分析。

Of or pertaining to or characteristic of trees of the birch family.

属于、关于或具有桦树科树木特征。

Alder trees belong to the birch family.

赤杨属于桦木科。n。藻类，海藻

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。