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马尾松树脂
相关语句
  masson pine resin
     Masson pine resin(Tall oil) was methlylated by tetramethylammonium hydroxide(TMAH) and the pro_ ducts were analyzed by GC-MS.
     利用氢氧化四甲铵 (TMAH)对马尾松树脂 (塔罗油 )进行甲基化 ,并对其产物进行GC -MS分析 ;
短句来源
  pine pitch
     The Effect of Calcium Soap on the Deposition Pine Pitch
     马尾松树脂及其钙皂沉积性能的研究
短句来源
  “马尾松树脂”译为未确定词的双语例句
     Regression Analytical Studies on the Resin Canal and Resin-Producing Capacity of Pinus massoniana
     马尾松树脂道与产脂力的回归分析研究
短句来源
     Cytochemical Localization of Pectinase: the Cytochemical Evidence for Resin Ducts Formed by Schizogeny in Pinus massoniana
     果胶酶的细胞化学定位:马尾松树脂道发生的细胞化学证据(英文)
短句来源
     CYTOCHEMICAL LOCALIZATION OF PECTINASE ACTIVITY IN DEVELOPMENT OF RESIN DUCTS OF PINUS MASSONIANA
     马尾松树脂道发育过程中果胶酶的细胞化学定位
     Reagents for more resin of pine were popularized and applied in main production region of Pinus massoniana in Fujian province. The results showed that reagents for more resin had a significant effect and back one on increasing resin yield for Pinus massoniana,reaching the rate of growth of 13.3%~36.1%,especially for the Pinus massoniana trees with original low yield.
     松树增脂剂在福建省马尾松主产区推广应用结果表明:施用增脂剂具有明显的增产效果,增产幅度达13 3%~36 1%,增脂剂对于低产马尾松树脂增产效果更为明显。
短句来源
  相似匹配句对
     Control Pitch Trouble of Masson Pine TMP with Oxidants
     氧化剂控制马尾松TMP树脂障碍
短句来源
     Disinfectant Resin
     消毒树脂
短句来源
     Resin Market Information
     树脂商情
短句来源
     The Effect of Calcium Soap on the Deposition Pine Pitch
     马尾松树脂及其钙皂沉积性能的研究
短句来源
     Pinus massoniana is one of the most important material trees for nursing, which can be used to built architecture, to make paper and veneer etc.
     马尾松(Pinus massoniana L.)
短句来源
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  pine pitch
Of particular interest is the presence of characteristic diterpenoid biomarkers in several samples, which indicates that pine pitch was used for gluing and pine resin for waterproofing vessels for liquids.
      
Pine pitch and rosin emulsion were used to create pavement.
      


The microscopical structures and functions of the resin canals of Pinus massoniana were preliminarily investigated with scanning electronic microscope. Photos of the intact structure of the canals were taken. The number of the canals on the regenerated face and distribution of resin canals in the trunk were also analysed. The results form a new basis for studying the mechanism of formation and secretion of oleoresin and increasing productivity in chemical tapping; prediction of the productivity of oleoresin...

The microscopical structures and functions of the resin canals of Pinus massoniana were preliminarily investigated with scanning electronic microscope. Photos of the intact structure of the canals were taken. The number of the canals on the regenerated face and distribution of resin canals in the trunk were also analysed. The results form a new basis for studying the mechanism of formation and secretion of oleoresin and increasing productivity in chemical tapping; prediction of the productivity of oleoresin and also the formulation of rational tapping methods.

本文初步观察马尾松树脂道的微观结构与功能,并获得完整树脂道的图相,测定了愈合再生割面树脂道数量和树干树脂道分布。为研究松脂形成分泌机理,化学采脂增产机理,产脂力预测,合理采脂得到新的启示和科学依据。

An effective method called "rotating-mixer", which can evaluates the deposition potential of wood resin in laboratory, is presented in this paper. Taking Mason pine resin as an example, some factors leading to resin deposition are also studied. The experiments results show that decrease of pH, existence of metal ions, shock of temperature and introduction of air bubbles are important reasons resulting in resin destabilization and deposition.

介绍了一种实验室树脂沉积潜力评价方法———旋转搅拌法。利用该方法对马尾松树脂沉积特性进行了研究 ,发现金属离子、pH值、温度、气泡的混入和时间等因素对树脂沉积都有重要影响。

Masson pine resin(Tall oil) was methlylated by tetramethylammonium hydroxide(TMAH) and the pro_ ducts were analyzed by GC-MS. The results indicated that GC-MS analysis after methylation of resin by TMAH was a fast and effective method for the determination of acidic components of resin. Since the methylation of unsaturated fatty acids in resin was more difficult than that of resin acids, methylation time should be properly prolonged for the completion of methylation.

利用氢氧化四甲铵 (TMAH)对马尾松树脂 (塔罗油 )进行甲基化 ,并对其产物进行GC -MS分析 ;研究表明TMAH甲基化后进行GC -MS分析是测定树脂中酸性组分的一种快速有效的方法 ,但酸性组分中的脂肪酸要比树脂酸难于甲基化 ,因此为了确保甲基化反应完全 ,应适当延长甲基化反应时间

 
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