木材

Because sexangle microscopic image of wood cells can represent most shape features of wood cells,this paper had accomplished the simulation of microscopic image for wood cells of regular normal hexagon,regular long hexagon changeable hexagon as per Early and Late.

由于六角形木材细胞显微图像，可以代表木材细胞的大部分的形状特征，本文完成了对规则正六角形、规则长六角形、按早晚材变化的六角形木材细胞显微图像的仿真。

Meanwhile,introduce the resource state of the huge Timber Mountain Gum × Flooded Gum timber of end too,combine gradually deficient wildwood timber resources in our country, so, huge Timber Mountain Gum × Flooded Gum timber physics mechanics nature includes the tail: Moisture content , density, swelling, obey the compression strength of the line, horizontal line compression strength , bending strength , resist curved elastic mould amount , resist intensity of cutting , carry on experimental study along line along line tensile strength and hardness, there is a very important and real meaning.

同时，也介绍了尾巨桉木材的资源状况，结合我国逐渐匮乏的天然林木材资源，因此，对尾巨桉木材物理力学性质包括：含水率、密度、湿胀性、顺纹抗压强度、横纹抗压强度、抗弯强度、抗弯弹性模量、顺纹抗剪强度、顺纹抗拉强度及硬度进行试验研究，将有着十分重要而实际的意义。

T.G. Rials, M.P. Wolcott, and D.j. Gardner. 1994. Characterizing the Wood Fiber/Polymer Interface. Techniques in Experimental Mechanics Applicable to Forest Products Research.

阎昊鹏，秦特夫，1999，木材表面非极性化原理的研究Ⅱ，木材与苯乙烯接枝共聚过程中化学官能团和表面极性的变化，木材工业，13(6)：19-21

Esterification process of a reversible step wereresolved as two irreversible steps,then chemical decomposition of wood components weredecreased in liquid acid catalyst.Experiments showed that crosslinking catalysts took catalysisrole on two process in the esterification,(1)five cyclic anhydrides formed by dehydration ofpolycarboxylic acids,(2)esters occurred by substitution between five cyclic anhydrides andwood.

实验中的反应过程使一般的酯化一步可逆反应，分解为两步不可逆反应，减少了液相酸催化过程的木材组分化学降解；交联反应催化剂对于多元羧酸类化合物与木材组分的酯化反应具有两个过程的催化作用：(1)多元羧酸脱水形成五元环酸酐中间体；(2)木材与五元酸酐中间体亲核取代反应形成酯。

Woodiness material is one kind includes lumber and with lumber for main raw material, have wood through what be handled machining, physico-chemically and get the material of main character and main constituent.

木质材料是一类包括木材和以木材为主要原料，经过机械加工、物理化学处理而得到的具有木材基本特性和主要组分的材料。

In the steam-jet heat pump steam and water is the working substance, so condensing temperature is higher than the refrigerant normally using in heat pump. It is suitable for all kinds of species wood drying in different temperature, especially high temperature drying.

本文是将蒸汽喷射式热泵技术应用于木材干燥，可以降低木材干燥的能耗，提高干燥质量和经济效益：蒸汽喷射式热泵以水蒸汽为工质，因此冷凝温度可以较高，适用于各种木材在不同的温度下的干燥以及高温干燥。

In the Steam-jet heat pump steam and water is the working substance, so condensing temperature is higher than the refrigerant normally using in heat pump.

本文是将蒸汽喷射式热泵技术应用于木材干燥，可以降低木材干燥的能耗，提高干燥质量和经济效益；蒸汽喷射式热泵以水蒸汽为工质，因此冷凝温度可以较高，适用于各种木材在不同的温度下的干燥以及高温干燥。

The hydroxyl and carboxyl, belonging to auxochromic groups, were oxidized into the carbonyl and ester groups, belonging to chromophoric groups, during inducing discoloration under the pretreatment conditions, which makes the wood color deeper. There were plenty of auxochromic groups and chromophoric groups in the acetone extractives of silver chain. The interaction between the auxochromic groups and the chromophoric groups made the wood color deeper.

结论］羟基、羧基等助色基团在预处理条件下氧化成羰基、酯基等发色基团，使木材的颜色加深；刺槐木材丙酮抽出物的主要成分中含有大量发色基团和助色基团，这些基团间的相互作用使木材颜色加深。

This paper clarifies the relationships between compliance coefficients and engineering elastic constants combined with orthotropic nature of wood, and twelve elastic constants of Betula platyphylla Suk.

该文结合木材的正交各向异性特征论述了木材的柔度系数与其工程弹性常数的关系，并采用电测法测试了白桦木材的12个弹性常数。

ChamaecyparisIawsoniana ParI and picea sitchensis Carr.wood treated with BTCA:Values of weigh percentgainreached 9.05% and 8.25%.Values of antiswelling efficiencyreached57.2% and 55.45% respectively.Values of moisture excluding efficiencyreached47.95% and 44.89%.Chamaecyparis Iawsoniana ParI and picea sitchensis Carr.wood treatedwith 1,2,3,4-butanetetracarboxylic acid and glycerin:Values of weigh percent gainreached 13.12% and 12.24%.Values ofantiswelling efficiencyreached 61.11% and63.12% re.Values of moisture excluding efficiencyreached 46.91% and 48.93%.Woodsurface colour of Chamaecyparis Iawsoniana ParI and picea sitchensis Carr.were slightlyvaried from red to yellow and from dismal to bright in crosslinking reaction.

处理后美国扁柏和西特克云杉两种木材，分别达到：WPG9.05％和8.25％；ASE57.2％和55.45％；MEE47.95％和44.89％；酯化剂中加入丙三醇，酯化处理美国扁柏和西特克云杉木材，分别达到：WPG为13.12％和12.24％；ASE为61.11％和63.12％；MEE为46.91％和48.93％；在酯化反应中，美国扁柏木材材色由偏红向偏黄、由稍暗向明亮方向有些变化。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。