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- Because of the depolymerization, chemical and physical properties of wood could be changed quite a lot by white rot fungi.In recent years, tremendous progress has been obtained in research fie... 近年来,在白腐菌的营养需求、降解酶传递途径、对木材主要组成酶降解机理及对材性的影响、产酶的分子遗传学等领域的研究均取得一定进展,可望不久将来能利用生物工程改变白腐菌基因,防止白腐发生。
- The technology of stress wave nondestructive testing(NDT) can be used to detect size,specification,and basic physical property of wood on the premise of nondestructive performance. 应力波木材无损检测技术可在不破坏木材使用性能的前提下,快速的检测出木材的尺寸、规格和基本物理性质等,基于此优点,应力波无损检测技术近几年越来越受到青睐。
- Compare the physical properties of the two substances. 比较一下这两种物质的物理特性。
- Keywords wood science;Mytilaria laosensis;plantation;physical properties of wood;mechanical properties of wood; 木材学;米老排;木材物理性质;木材力学性质;
- DIMENSIONAL STABILITY AND PHYSICAL PROPERTIES OF WOOD TREATED WITH LOW-TOXIC PRESERVATIVES SUCH AS CHLOROTHALONIL, ACQ AND COPPER CITRATE 低毒防腐剂百菌清及铜制剂对木材尺寸稳定及力学性能的影响
- The raw materials, equipments, technology, physical properties and surfacing of wood imitating PU foam were reported in the paper. 摘要主要阐述聚氨酯仿木料的原料、设备、工艺及其制品的性能和表面处理。
- The raw materials,equipments,technology,physical properties and surfacing of wood imitating PU foam were reported in the paper. 主要阐述聚氨酯仿木料的原料、设备、工艺及其制品的性能和表面处理。
- physical properties of wood 木材物理性质
- Physical property of wood from plantation and natural forest of Michelia tsoi Dandy 乐昌含笑人工林和天然林木材物理性质的比较
- This is a key concept in wood design since moisture affects the physical and mechanical properties of wood differently depending on whether the MC% is above or below the FSP. 因为含水量影响木材的结构属性,所以木材这种吸收和释放水分的能力对于木材设计来说是相当重要的。
- These electrical bridges measure the physical properties of insulating materials. 这种电桥可以测量绝缘材料的物理性能。
- Biological communities are initially limited by the existing physical properties of the site on which they occur. 生物群落在其出现的地区最先受到生存环境自然特点的限制。
- The basic properties of wood such as moisture content, density, grain direction and modulus of elasticity can be measured nondestructively. 摘要与木材材质有关之因数如含水率、比重、木理走向、弹性系数等可藉破坏或非破坏方法来测定或推定。
- The gradation in the physical properties of the alkanes is typical of a homologous series. 烷烃物理性质的逐渐变化是同系列的特点。
- The research aimed to improve the fire retardant properties of wood through treatment with phosphoryl triamides. 摘要本研究目的在于以磷醯三胺化合物改善木材之耐燃性质。
- The need to understand the physical properties of nanostructures is ubiquitous in our modern society. 由于电子元件愈做愈小,对其中微小结构的物理性质的了解十分重要。
- To my knowledge,heat treatment is a method by which the physical properties of metal can be changed. 据我所知,热处理是人们改变金属物理性能的一种方法。
- Molal solution are normally used when the physical properties of solutions, such as vapor pressure, freezing point and boiling point, are involved. 在涉及溶液的物理性质如蒸汽压,冰点和沸点时,通常使用重量克分子浓度。
- GB/T 17657-1999 Test methods of evaluating the properties of wood based panels and surface decorated wood-based panels[S].Beijing:Standards Press of China,1999. GB/T17657-1999人造板及饰面人造板理化性能试验方法[S]北京:中国标准出版社;1999.
- Application of high pressurization to fish meat: Changes in physical properties of carp skeletal. 高压在鱼类食品的应用:鲤鱼骨骼物理特性的变化。