查询词典 elm bark

Through research and analysis of data, it was observed that the length and width of bark fiber varied according to the lop and age, the results show the fiber of the Salix bark is longer than the Salix and width of fiber almost same, fiber length of the Salix bark mainly influenced by the times of lop. The ash in Salix bark,1% Sodium Hydroxide Solubility in Salix bark, water solubility in Salix bark, Ethanol-Toluene in Salix bark, acid-insoluble lignin in Salix bark changed with the lop and age is also been investigated, the component of Salix bark is higher than Salix except acid-insoluble lignin,and it's high effected by times of lop; the TG analysis and DSC analysis is been used on the Salix bark and Salix to study the character of the hot-action, and the rang of the pyrogenate temperature is confirm; the quantity of Salix bark effect on the MOR, MOE, swelling in 24h water, nail withdraw and inner strength was determined, the results show that the Salix bark notability effect on the properties of board and dropped it; the properties of the Salix bark board is nearly the board product by other bark residues, it was established the multi regression equation of each properties and optimized the fitting produce condition of Salix bark board.

通过试验和数据处理，得出了沙柳树皮纤维长度、宽度随平茬和材龄的变化规律，结果表明沙柳树皮长度要比沙柳材的要长，宽度基本相同，沙柳树皮纤维长度主要受平茬次数的影响；找出了沙柳树皮中灰分、冷热水抽出物为、1%NaOH抽出物为，甲苯乙醇抽出物、酸不溶木素与平茬次数和材龄之间的关系，除酸不溶木素外，其他成分均明显高于沙柳材，沙柳树皮的化学成分主要受平茬次数的影响；利用TG和DSC法分析了沙柳树皮和沙柳材的反应热特征，确定了热解的温度范围；研究了沙柳树皮量对于刨花板MOR、MOE、吸水厚度膨胀率、握钉力以及内结合强度的影响，结果证明沙柳树皮量对于刨花板的各项性能指标影响显著，它的掺入降低了刨花板的各项性能；对沙柳树皮板的研究表明，沙柳树皮板的各项性能与同类树皮板的性能基本相近，建立的二次回归模型稳定，并利用回归方程求出了适宜的沙柳树皮板制造工艺。

Second,we set the database of morphological characteristics of intercepted and captured bark beetle during quarantine,and the last,we studied the molecular identification of 15 species.The results were showed as below.1.Application of bark beetle semiochemicals in timber quarantine1.1 EAG and walking responses of bark beetle to different semiochemicalsSemiochemicals which can induce the olfactory response and aggregation behavior of bark beetle include host volatile components,pheromones secreted by bark beetles itself or synthesized with host compounds by bark beetles,and the compounds released by tissue of decaying wood under the pressure of microorganism after bark beetle colonization.

信息化合物在小蠹虫检疫中的应用1.1小蠹虫对各种信息化合物的触角电位及嗅觉反应能诱发小蠹虫产生嗅觉反应，进而使之产生聚集行为的信息化合物有很多种，主要包括：树木的挥发性组分；小蠹虫自身产生的信息素和寄生后转化寄主化学物质合成的信息素统称虫体信息素以及树木被小蠹虫寄生后，其组织在微生物作用下释放的物质。

Using the annual ring datum of elm nearby Lubei Town of Jarutqi, Tongliao City, established the length for 97 years elm standard timeline, according to the standard timeline and the hydrometeorology datum of Lubei area, analyzed the relationship between the elm growth and the hydrometeorology factor.

利用科尔沁沙地通辽市扎鲁特旗鲁北镇附近榆树树木年轮资料，建立了长度为97 a的榆树标准年表，通过标准年表和鲁北地区水文气象资料相关，分析了榆树生长与水文气象因子的关系。

Result With young elm forest-pumpkin strip intercropping, since the branch tendril covered the gap between pumpkin planting-ditches and elm forest land, the soil moisture was remarkably increased. And the water use efficiency under intercropping increased by 23.7%-163.3% compared with the sole cropping. Elm-pumpkin strip intercropping changed the sequential succession trend of the grasses growing in the gap of the pumpkin planting-ditch, annual grasses became the dominant vegetation, and the feeding nutrient matter content and yield of the annual grasses increased significantly.

榆树幼林与南瓜间作后，瓜蔓覆盖地面，显著提高了南瓜行间和榆树林地的土壤水分含量，林－瓜间作地水分的利用效率较单作提高了23.7%~163.3%；间作改变了南瓜行间杂草群落自然演替的方向，一年生杂草成为优势物种，其饲用营养物质的含量和产量较林带间杂草显著提高。

Pine bark has the qualities of fine quality and cheap,useful Iin is3、 years if the pine ground su.bstance is used,if use float grass,and the time limit is only one year,the production cost of pine bark as ground substance is lower than the float grass.comparing with Using pine bark and float grass on Moth orchid.the seedling period is shortened one month pine bark media is suitable for Moth orchid,iron sheet dendrobe,spring dendrobe,etc..

松树皮介质适用于蝴蝶兰、大花蕙兰、铁皮石斛、春石斛等各种洋兰。

Mix these ingredients together in a bowl- one-teaspoon of comfrey root, one-teaspoon of white oak bark, one-teaspoon of slippery elm bark and two cups of water.

混合这些成分一起在一碗一茶匙comfrey根，一茶匙的白栎树皮，一茶匙滑榆树皮和2杯水。

As the bark beetle damages in the trunk or the inner bark of trees, it can be easily transmitted during international trade in timber and wooden packing material, so the quarantine of bark beetle is very important.

由于其在木材和树皮下危害，使得小蠹虫随木材进口和各种货物木质包装材料在国际间传播的机会大大增加，因此具有十分突出的检疫重要性。

As the bark beetle damages in the trunk or the inner bark of trees,it can be easily transmitted during international trade in timber and wooden packing material,so the quarantine of bark beetle is very important.

小蠹虫是鞘翅目小蠹科昆虫的总称，全世界约有220属，6000种左右，是林木害虫中一个极重要类群。

Generally,to solve the practical problem of bark beetle quarantine in imported timber and wooden packing material,we carried out the research of semiochemicals-trap application,morphological and molecular identification of bark beetle in this project,and the results would contribute to improving the whole level of bark beetle quarantine.

本研究从解决进境木材及木质包装材料携带小蠹虫检疫的实际问题出发，进行了信息化合物引诱技术在小蠹虫检疫中的应用，以及检疫性小蠹科昆虫形态与分子鉴定等一系列研究，为小蠹虫整体检疫水平的提高奠定了理论与实践基础。

Further more,at present,there are tess systemic professional references about intercepted and captured bark beetle during quarantine in China,so it\'s time to establish a database of morphologic characteristics of bark beetle for quarantine in order to help quarantine inspection officer correctly identify them.Together with DNA bar-coding technique,the database will greatly promote the ability in identifying intercepted and captured bark beetle during quarantine.

此外，由于小蠹科昆虫种类繁多，目前对检疫截获小蠹虫的鉴定工作存在较大困难，且比较系统地反映我国进口货物中截获小蠹虫的专业资料较少，因此，急需建立针对我国进口木材中小蠹虫检疫用的形态图谱以加强检疫人员对其的识别；并通过分子生物学分类技术的研究，辅以DNA条形码技术以提高对其的鉴定水平。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？