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mixed hardwoods
相关语句
  混合阔叶木
     A study on Mixed Hardwoods APMP Pulping Conditions
     混合阔叶木APMP制浆工艺条件探讨
短句来源
     The effect of green oxygen on alkaline pulping of mixed hardwoods and birch was investigated.
     在实验的基础上考查了绿氧在混合阔叶木和桦木的碱法蒸煮中的影响。
短句来源
  “mixed hardwoods”译为未确定词的双语例句
     Chemimechanical Pulp from Mixed Hardwoods
     用东北硬杂木制取磺化化学机械浆
短句来源
     Experiments are being conducted on the purification of effluents from kraft pulping of pine, semi-chemical pulping of mixed hardwoods and alkline pulping of straws with four different species of aquatic plants, namely hyacinth (Eichhornia crassipes), water peanut (Alternanthera Philoxenoides), water lotus (Nelumbo) and duckweed (Spirodeld).
     在实验室条件下,系统研究了我国江南常见的水葫芦(Eichhornia crassipes)、水花生(Alternanthera philoxenoides)、水浮莲(Pistia stratiotes)及浮萍(Lemna sp.)
短句来源
  相似匹配句对
     Chemimechanical Pulp from Mixed Hardwoods
     用东北硬杂木制取磺化化学机械浆
短句来源
     A study on Mixed Hardwoods APMP Pulping Conditions
     混合阔叶木APMP制浆工艺条件探讨
短句来源
     MIXED STROKE
     混合性中风
短句来源
     type C: mixed.
     C型:混合型。
短句来源
     U.S. HARDWOODS FOR INTERIOR DESIGN AND DECORATION
     美国阔叶木在室内设计与装饰中的运用
短句来源
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  mixed hardwoods
Twelve, 16-ha study sites were established in recently harvested (1980) stands of natural pine-mixed hardwoods located in the Piedmonts of South Carolina and Georgia.
      
Our data suggest that areas close to agricultural clearings, dominated by mixed hardwoods, and located towards valley bottoms or on gentle slopes are very likely to support communities of exotic earthworms.
      
Mixed hardwoods were the dominant and most highly connected forest community type, occupying between 47 and 70% of each study area.
      
The predominant lithology of the area is granite, and over 60% of the watershed remains forested with mixed hardwoods (primarily oak) and eastern white pine.
      
A bleached kraft pulp from mixed hardwoods (LBKP) was carboxymethylated, then crosslinked with polyethylene glycol diglycidyl ethers (PEGDGE) with different degrees of polymerization under different conditions.
      
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Experiments are being conducted on the purification of effluents from kraft pulping of pine, semi-chemical pulping of mixed hardwoods and alkline pulping of straws with four different species of aquatic plants, namely hyacinth (Eichhornia crassipes), water peanut (Alternanthera Philoxenoides), water lotus (Nelumbo) and duckweed (Spirodeld).Reductions in CODCr, CODMn and colour of effluents are examined. It is found that Alternanthera Philoxenoides appears to be most effective for all effluents studied.

在实验室条件下,系统研究了我国江南常见的水葫芦(Eichhornia crassipes)、水花生(Alternanthera philoxenoides)、水浮莲(Pistia stratiotes)及浮萍(Lemna sp.)等四种水生植物,对针叶材硫酸盐浆废水、阔叶混合材半化学浆废水、化学浆及半化学浆混合废水以及碱法草浆废水净化处理的效果。测定了处理3、6及9天后废水COD_(cr)、COD_(Mn)及色度去除率,观察了废水pH值、溶解氧变化情况及水生植物生长情况。结果表明,水花生及水葫芦对制浆造纸废水有很强的适应能力和显著的净化效果。

On the basis of the "Sustained Yield Principle", the reasonable cutting quantity for each of the three working groups, i. e. Chinese Fir, Masson pine and mixed hardwood forest, is determined with the method of proportion for the area rotation and the equation of cutting quantity. The results show that the total forest reserves of Qingyuan will increase from 7,394,685 m3 now to 10,545,427 m3 in A. D. 2000. And the age-class distribution tends to be reasonable.

本文从庆元县森林资源现状出发,根据永续利用原则,对杉、松、阔三个作业类型,用面积轮伐比例法结合采伐量计算公式,来确定合理的采伐量,使该县森林资源从现在的739万m~3增加到2000年时的1054万m~3,龄级结构趋于合理。

The long-petioled dogwood is a shade-enduring tree,most commonly as an understoryspecies in mixed hardwood forests on rich sandy loams located in hillside and foolhills. Based onthe determination of the physico-mechanical properties of wood,it is shown that its timber isheavy,tough, strong,and difficult to split. This tree is best known for its uses,such as for high-grade furniture,shuttles,bobbins,fine carving and turnery wood,high figured material,productof industrial art,plywood and agricultural tools....

The long-petioled dogwood is a shade-enduring tree,most commonly as an understoryspecies in mixed hardwood forests on rich sandy loams located in hillside and foolhills. Based onthe determination of the physico-mechanical properties of wood,it is shown that its timber isheavy,tough, strong,and difficult to split. This tree is best known for its uses,such as for high-grade furniture,shuttles,bobbins,fine carving and turnery wood,high figured material,productof industrial art,plywood and agricultural tools.

研究琅琊山产毛的生长习性、解剖特征、物理力学性质、化学成份和用途。结果表明:毛木材材质优良,适于家具、纺织器材、造纸、工艺美术以及建筑等方面使用。

 
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