木材

Propose novel experimental techniques to estimate quickly the longitudinal mechanical properties of tracheids, and then to explore the in-tree variation of longitudinal mechanical properties of tracheids of Chinese-Fir from plantation.

研究管胞力学性质的主要影响因素及其株内变异规律不仅有利于实现木材纤维／塑料复合材料和纸浆造纸领域对纤维的选择性利用、还可以为木材性质的基因改良提供量化的目标和指标。

The results were as follows the airdried density ( moisture content of wood is 12%), the basic density and the ovendry density were 0.583 g·cm-3, 0.462 g·cm-3 and 0.507 g·cm-3 respectively, the airdried density was at the medium level in domestic wood species;the shrinkage coefficient of radial, tangential and volumetric were 0.099%, 0.183% and 0.296% respectively, the maximum swelling were 4.106%, 7.958% and 12.627% respectively;the ratio of tangential shrinkages to radial shrinkages was 1.5-1.9;the toughness was 52.12 kJ·m-2;the hardness of cross, radial and tangential section were 41.53 MPa, 31.41 MPa and 35.51 MPa respectively;the compressive strength parallel to grain was 44.50 MPa ;the modulus of elasticity in static bending and the bending strength were 12.63GPa and 127.31 MPa respectively;the shearing strength parallel to grain of radial and tangential were 8.76 MPa and 10.54 MPa respectively;the cleavage strength to grain of radial and tangential were 124.3 N·mm-1 and 138.6 N·mm-1 respectively.

结果表明大叶栎木材的气干密度（含水率为12％）、基本密度和全干密度分别为0.583 g·cm-3、0.462 g·cm-3和0.507 g·cm-3，气干密度属于国产木材的中等级水平；径向、弦向和体积干缩系数分别为0.099%、0.183%、0.296%，湿胀率依次为4.106%、7.958%和12.627%，差异干缩为1.5-1.9，其尺寸稳定性较好；冲击韧性为52.12 kJ·m-2，端面、径面和弦面硬度分别为41.53 MPa、31.41 MPa和35.51 MPa，顺纹抗压强度为44.50 MPa，抗弯弹性模量和抗弯强度分别为12.63 GPa和127.31 MPa，径面和弦面顺纹抗剪强度分别为8.76 MPa和10.54 MPa，抗劈强度依次为124.3 N·mm-1和138.6 N·mm-1。

The results indicated that there were significant differences between clones and all the coefficients of shrinkage that were found to be under strong genetic control. The vertical variation pattern within tree of shrinkage was downward with the tree height. The clonal repeatability's in shrinkage of oven-dried and air-d...

结果表明：木材干缩率在无性系间的差异都达到了极显著水平，并受到强度遗传控制；木材干缩在株内纵向的变异模式是随树高增加而降低；全干体积，径向、弦向干缩率和气干体积，径向、弦向干缩率无性系重复力分别为 0 89，0 95 ，0 84 ，0 6 7，0 84和 0 6 8。

The results were as follows: the air-dried density(moisture content of wood is 12%),the basic density and the oven-dry density were 0.583 g·cm-3,0.462 g·cm-3 and 0.507 g·cm-3 respectively,the air-dried density was at the medium level in domestic wood species;the shrinkage coefficient of radial,tangential and volumetric were 0.099%,0.183% and 0.296% respectively,the maximum s...

结果表明：大叶栎木材的气干密度(含水率为12%)、基本密度和全干密度分别为0.583 g.cm-3、0.462 g.cm-3和0.507 g.cm-3，气干密度属于国产木材的中等级水平；径向、弦向和体积干缩系数分别为0.099%、0.183%、0.296%，湿胀率依次为4.106%、7.958%和12.627%，差异干缩为1.5-1.9，其尺寸稳定性较好；冲击韧性为52.12 kJ.m-2，端面、径面和弦面硬度分别为41.53 MPa、31.41 MPa和35.51 MPa，顺纹抗压强度为44.50 MPa，抗弯弹性模量和抗弯强度分别为12.63 GPa和127.31 MPa，径面和弦面顺纹抗剪强度分别为8.76 MPa和10.54MPa，抗劈强度依次为124.3 N.mm-1和138.6 N.mm-1。

Wood Group is a Hong Kong-fu-forestry development, timber processing, energy research forest, the forest and planting economic crops and real estate development, engineering Jian'an, Hotels, the sports industry as one of the large-scale comprehensive, entities of the company, in response to national Forestry reforms "to promote the development of large projects, and forestry development by leaps and bounds," the slogan of improving the ecological environment, ease the shortage of forest resources and long-term dependence on foreign imports of timber the status quo, with national "fast growing timber base," the implementation of construction projects, Companies to adopt "Intensive management, group-based management" of the international mode of operation, with advanced enterprise management and solid financial strength, Dongting Lake in Hunan rapidly creating a large area of timber, and strive to in the next five - 10 years to Lin board paddle integration of the industry chain development pattern.

香港福木集团是集林业开发、木材深加工、能源森林科研、林间地经济作物种植及房地产开发、建安工程、酒店宾馆业、体育产业为一体的大型综合化、实体化公司，为了响应国家林业改革&以大工程带动大发展，实现林业跨越式发展&的口号，改善生态环境，缓解我国森林资源紧缺及长期依赖国外进口木材的现状，配合国家&速生丰产用材基地&建设工程的实施，公司采取&集约化经营，集团化管理&的国际化运作模式，凭借先进的企业化管理和雄厚的资金实力，迅速在湖南洞庭湖区营造了大面积用材林，并力争在未来五——十年实现林板桨一体化的产业链发展格局。

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 results indicated that the trait of fibre leng th has obviously het erosis,there may have positive effects among the genes controlling the trai t of fibre length,but may have negative effects among the genes controlling the t rait of wood density.

通过对美洲黑杨青杨（P.catha yana）的68个F2、双亲及其4个F1无性系田间随机区组设计，5次重复，分析了与木材材性有关的木材密度、纤维长、纤维宽以及微纤丝角等性状。

The series of products are: One step thick plastic and wood decoration plate extrusion machine, plastic and wood palletizing machine and different kinds of plastic and wood dies.

该系列产品是：一步厚的塑料和木质装饰板挤出机，塑料和木材堆垛机和各种不同的塑料和木材死亡。

There is great gap between theory research and current development about press plate wood vacuum dryer, especially wood vacuum drying schedule which can not meet the requirement of production.

目前，国内对于压板式木材真空干燥机的理论研究与实际还有很大的差距，尤其是木材真空干燥工艺基准不能适应实际生产要求。

For canvases over 40", it is best to brace the back or corners, if not using heavy duty stretchers. A major brand for stretcher bars is Fredrix, and these are sold in art stores and some office supply stores. If you are handy with saws, you can make your own stretchers with wood from the lumber yard, a piece of curved molding, and a mitre saw. Me, I'd rather spend my time painting, so I buy pre-made stretchers. You also will need "keys for the stretchers, small wooden angled chips, which are used to make the stretched canvas more snug in the corners. These are free, and are usually found near the stretcher bars, in a box. You need 8 of them; just grab a small handful when you buy your stretcher bars.

画布超过40 &，这是最好的，以振奋精神，背部或角落，如果不使用重型担架）的一大品牌，为担架网吧fredrix ，而且这些出售的艺术品商店和一些办公用品商店，如果你轻便与电锯，你可以作出你自己的担架，与木材，从木材堆场，这块弯曲成型，并米特雷看到我，我宁可花我的时间绘画，所以我买预作了担架上，你也将有需要的&钥匙，为担架上，小木船直角芯片，它被用来使绷画布更多的乐趣，在弯道，这些都是免费的，通常是附近发现担架酒吧，在一个方框，你需要八人；刚刚抓斗极少数的，当你买你的担架酒吧。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。