The variation of wood properties by acid rain influenced significantly wood processing and utilization .
酸雨引起杨树木材性质的变异对杨木的加工利用有一定的影响。
Form traits, phenology and relations of origin to growth, wood properties and isozymes were investigated.
对有关基因资源作了形态学、物候学、形态与生长、材性、同功酶谱等的调查与分析。
It achieved the query and search of wood name, wood properties, wood macroscopic and microscopic image on computer.
实现了按木材名称、木材各类属性、木材宏微观图像等多方向、多关键字计算机查询检索。
Synthetic selection index is a good measure for union selection on growth traits, tree form traits and wood properties.
综合选择指数是开展生长、树形和材质多性状优良家系联合选择的理想方法。
The wood properties of alder is similar to that of poplar and birch which could be used to produce different kinds of pulp.
就桤木商用种植的生产潜力、制浆造纸和材性研究现状等进行综合评述。
Therefore, this special structure of the decision that it has ultra-high strength, high insulation, water seepage and other unique wood properties.
因此，这种特殊结构决定了它具有超轻高强、高效保温、防水防渗等独特的材性。
Ultimately some elite families and trees with rapid growth, good cold tolerance and good wood properties were selected by a comprehensive index method.
通过综合指数选择法，选出了优良速生、耐寒家系和单株，并率先选择了速生、耐寒且木材品质好的优良单株。
Wood extractives exhibit significant effects on wood properties and hence its utilization. They also play an important role on the chemotaxonomy of tree species.
木材浸出物对于木材材性和木材利用都有重要影响，而且在树木化学分类上也有重要意义。
Besides this, cultivation of excellent variety that has better performance in wood properties including bulk density and fiber length also has been gained more and more attention from society.
生长量是杨树的重要性状指标，但除此之外，容积密度和纤维长等在材性上表现较佳的优良品种的培育也越来越受到社会的关注。
The physical and mechanical properties of middle cutting wood of Cunninghamia lanceolata are inferior to those from natural forests.
杉木中伐材的物理力学性能不如天然林中伐材。
The only heating is a wood-burning stove; such are the insulating properties of straw that fuel bills could be 20% of those of conventional homes.
唯一的取暖设施是烧木头的火炉使用的稻草是绝缘特性的稻草燃料只需要传统的家庭使用的燃料的20%。
All the timber used in the building except the benches is bamboo because of the special properties of this wood.
由于竹子的特殊属性，除了长椅，建筑中使用的所有木材都是竹子。
Wood is the product of cambial activity in trees, and the seasonal activity style of cambium directly influences wood biomass production, structures and properties.
木材（次生木质部）是树木形成层细胞分化的产物，形成层的活动方式不仅影响木材的产量，而且影响木材的结构和性质。
Being not a perfect elastic substance, wood behaves some viscoelastic properties in many respects.
木材不是完全弹性体，其力学性质具有明显的粘弹性。
Wood floor adhesives should have properties of highly adhesive strength and good durability, water resistance and impact resistance.
木地板粘结剂应具有足够的粘结强度和良好耐久性、耐水性和抗冲击性能。
This paper studies the influence of adding chemical coupling, changing the dosage of polyethylene and polypropylene on mechanical properties of Wood fiber and Plastic Composite (WPC) panel.
通过聚乙烯、聚丙烯分别与木纤维复合制板工艺的实验，探讨了加入助剂和改变聚乙烯、聚丙烯用量对复合材料力学性能的影响。
Composites with high mechanical properties that can be used as structure materials can be obtained by combining wood flour and chopped glass fiber.
采用短切玻璃纤维与木粉组合，可以获得力学性能很高，能作为结构材料使用的复合材料。
Viscoelasticity theory is of great importance in study on mechanic properties of wood composite material.
粘弹性理论在对木质复合材料力学性能的研究中起着特殊重要的作用。
This paper discusses the factors affecting the properties of wood plastics composites including the effects of compatibility, fluidity, processing and puts forward the relevant improving methods.
介绍了影响木塑复合材料性能的几种因素，其中包括相容性、流动性、加工工艺的影响，并提出了相应的改善方法。
The results showed that there existed variation among eucalypt families in wood physical-mechanical properties and wood chemistry.
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；
The position and shape of DSC curws were essentially changed, by treating with fire retardants, that is, the combustion properties of wood were changed.
不同阻燃剂的加入可明显地改变DSC图谱的峰形和峰位，即改变了木材的燃烧性能。
The dark structure: great drum of used oil, the high corrosion resistance of domestic and imported wood meticulously produced, excellent anti-corrosion properties of insulation.
鼓体结构：鼓体采用油性极大，耐腐蚀度高的国产和进口木精心制做，防腐保温性能极佳。
A kind of wood adhesive prepared by extracting peanut hull offers excellent properties and it is suitable to make artificial fabric board.
利用花生壳提取物制造木材用胶粘剂，其性能比良，适用于人造板的制造。
The effects of compatibilizer content, wood flour content and size on the mechanical and fluid properties of composite were studied.
考察了木粉含量、粒度、界面相容剂用量对复合材料力学性能、流动性的影响。
This article analyseistics the characters of part of Canada market wood-pulp, and the properties of paper affected by these. Thisprovides basis for correct choice pulp from Canada.
对加拿大几种重要的漂白针叶木浆的特性及其对纸张性能的影响进行了分析，为正确合理地选用加拿大商品木浆提供了依据。
Peat tar has similar properties to the tar derived from the destructive distillation of wood .
泥煤焦油的性质和由木材干馏所得到的焦油的性质相似。
The manufacturing technology and properties of the composite board made from wood fiber and wheat straw particle were investigated.
对以木纤维及麦秸刨花为原料制造纤维刨花板的制造工艺及板材性能进行了研究。
The result shows that sample dimension has light influence on wood physical properties, but different degrees of influence on wood mechanic properties.
结果表明：木材物理性质一般受试样尺寸的影响较小；木材力学性质则不同程度地受到其影响。
The result shows that it may remarkably improve the mechanical properties of WPC by chemically modifying wood fiber.
结果表明：对纤维进行改性处理，可以明显改善木塑复合材料力学性能；
The result shows that it may remarkably improve the mechanical properties of WPC by chemically modifying wood fiber.
结果表明：对纤维进行改性处理，可以明显改善木塑复合材料力学性能；
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