其木材

In the instrument of lignum automatic measurement,the length of lignum was measured by CCD.The design of the time sequence driving circuit of CCD was a critical problem of its application.

木材自动测量仪是用来自动扫描工厂加工的木材长度，并将其图像和数据保存在计算机中，便于调用木材时查询。

The results showed that there existed variation among eucalypt families in wood physical-mechanical properties and wood chemistry. There were significant differences among E.pellita families、E.grandis families and E.urophylla譋.grandis clones in wood colors as well as between Strains and within trees.The variation of the surface wetability of wood between E.grandis families and E.urophylla譋.grandis clones were significant.Even in the same families level or clones level,there still existed the same regulation. The degree of collapse of eucalypt had a large relation in the amount of tylosis in vessel and vestured pits on the cell wall of vessel. The more rich tylosis and vestured pits in vessels,the more probability to occur collapse for eucalypt.The biggest moment collapse was probably the critical point of the drying degrade.During the fomulation of drying technology,it is necessary to adopt moderate condition to make the vessels which had formed the biggest moment collapse at the biggest moment collapse resume,especially to prevent the permanent set.At the normal temperature level,the main factors which influenced residual collapse were the contents of ray parenchyma and axial parenchyma .Nearly all the cells joined the course of forming the moment collapse and biggest moment collapse.Interval drying was fit for eucalypt plantation which was easier to make collapse.

研究表明：桉树不同家系间木材物理力学性质和化学组成存在差异；粗皮桉家系间、巨桉家系间、尾巨桉无性系间材色存在显著差异，株间、株内木材材色存在变异；桉树木材表面润湿性在巨桉家系间、尾巨桉无性系间存在着显著差异，在同一家系或同一无性系中，株间和株内也存在着相同的变化规律；桉材皱缩程度与其导管中侵填体的多少和导管壁上纹孔具有的附物多少密切相关，侵填体含物越丰富，纹孔附物越多，桉材越容易皱缩；最大瞬间皱缩是能产生更大干燥降等的临界点，在制定干燥工艺时，必须在最大瞬间皱缩发生时，采用温和条件，使已产生最大瞬间皱缩的细胞尽可能多的恢复，尤其不能使其产生永久变定；在常温条件下，影响残余皱缩的主要因子是射线薄壁细胞和轴向薄壁细胞含量；而对于瞬间皱缩和最大瞬间皱缩，几乎所有细胞都参与它们的形成过程；对于易皱缩的桉树木材，间歇干燥是最有前途的干燥方法。

In the presence of a catalyst, ethyl silicate was mixed with ethanol-water solution to form silica sol, which was impregnated into Alnus nepalensis and Tilia amurensis wood as soon as possible.

文章摘要：在催化剂存在下，使正硅酸乙酯与乙醇-水溶液混合制备硅醇溶胶，迅速将其分别注入到西南桤木和紫椴木材中，令其在室温下反应100min左右得到木材-凝胶，然后采用超临界干燥技术制备木材-SiO2气凝胶。

The high speed lumber compound machining center was the woodworking machinery profession key equipment, this paper elaborates the present development Qituation of the contemporary woodworking profession, analyzes the princple of the high speed lumber compound machining center control system, takes UMAC as the core component and develops control system used in the high speed lumber compound machining center by combining its harduare with its soft wase.

高速木材复合加工中心是木工机械行业的关键装备，文中阐述了当代木材加工行业的发展现状，分析了高速木材复合加工中心控制系统的原理，并且以UMAC为核心器件，在配合其硬件和软件的基础上开发了一种用于高速木材复合加工中心控制系统。

In first, a new short time formula of one dimension heat conduction differential equation, based on the theory of one dimension transient method, is presented for thermophysical property measurement of wood. The result of testing on red pine and larch wood arc satisfied by new method.In succession, the relationship between heat conductivity of wood and moisture, density, porosity, temperature and grain is studied experimentally in the range from 25 to 100℃. The result shows that, the heat conductivity is in direct proportion to density. but in inverse proportion to porosity. The heat conductivity of air-dried wood increased probably linear with the temperature rising. And that heat conductivity along the grain of wood is higher than that cross the grain. The former is 1.8 or 2 times of the latter.

文中研究了25～100℃范围内，气干木材的导热系数与含水率、密度、孔隙率、温度及热流方向的关系，研究表明：木材导热系数与密度成正比关系，与孔隙率成反比关系：对于针叶材，导热系数与密度及孔隙率成线性变化关系，而对于阔叶材其变化关系近似成二次曲线；气干木材的导热系数随着温度的升高近似呈线性增加：热流平行于纹理方向的导热系数大于垂直于纹理方向的导热系数，两者的比值大约在1.8～2之间。

This thesis investigated the VOC emission from drying of Chinese fir and Eucalyptus plantation lumber in a pilot-scale kiln.

本论文以杉木、尾叶桉为研究对象，对木材精油和木材生材在常温状态下释放的有机挥发物成分进行了分析研究，重点研究了木材在高温和常规干燥条件下VOC释放成分，释放规律及影响因素，评价了木材干燥过程中VOC释放对环境的影响，为有效合理控制VOC排放和制定其排放标准提供了基础数据。

Because bamboo is different from wood in structure and properties, so bamboo has its own characteristics. In order to guarantee the surface quality of engineered bamboo based panel board, the cut method and cut parameters applied should not be the same with those of wood based panel board.

由于竹子的结构与木材不同，所以竹材有其固有的特性，为了保证竹材制品切削加工后的表面质量，其切削方式和切削参数不能完全套用木材的。

The United States accused Canada of providing unfair support to its timber industry.

美国曾控诉加拿大对其木材工业提供了不公正的支持。

The United States accused Canada of providing unfair support to its timber industry.

美国政府因此控告加拿大对其木材业提供了不公平的支持。

Yew trees are symbolic of death and resurrection - the wood is particularly resistant to rotting - and were once a traditional feature of churchyards.

紫杉树是死亡和复活的象征——其木材有显著的防腐作用——而且曾经是墓地的传统特征。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。