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gum yield
相关语句
  植物胶产量
     By using water as extracting agent and alcohol as precipitant,vegetable gum was extracted from taro. Effects of extracting temperature,extracting time and precipitant dosage on gum yield were studied,and the optimum extracting conditions of the vegetable gum from taro were determined-
     采用以水为萃取剂、酒精为沉淀剂的方法,从芋头中提取植物胶,研究了萃取温度、萃取时间、沉淀液的用量对植物胶产量的影响,并确定了芋头植物胶的最佳提取条件。
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  “gum yield”译为未确定词的双语例句
     The result shows that the initial viscosity and gum yield increase from 453 Pa·s and 199% to 12·28 Pa·s and 345% respectively. 
     试验结果表明:菌株的最终发酵液粘度和产胶率由初始的4 5Pa·s和1 99%提高到12 28Pa·s和3 45%.
短句来源
     Xanthan gum yield in the reactor was 25.02 g/L,viscosity of fermentation broth was 5 847 cP.
     进行了发酵罐发酵实验,黄原胶的发酵产量可以达到25.02g/L,发酵液的终黏度5847cP。
短句来源
     Xanthan gum yield in reactor was 25.02g/L, viscosity was 5847cp.
     最后进行了发酵罐发酵实验,黄原股的发酵产量可以达到25.02 g/L,发酵液的终黏度5 847cp。
     The results indicated:in the aspect of the gum yield,the proximate chemical compositions,the neutral sugar content,galacturonic acid content and neutral monosaccharide composition of the gum,there were no significant difference;
     结果表明:两地胶在胶得率,胶中主要化学成分含量,胶中中性糖含量、半乳糖醛酸含量以及中性单糖的组成方面,差异不显著;
短句来源
     As a result, the average gum yield of the medium forest-type is 59% and 27% higher respectively than the other two forest types, namely, the thick branches and wide crown,and the thin branches and narrow crown of Pinns ellio-ttii Engelm.
     根据湿地松林分中存在的粗枝宽冠型、细枝窄冠型、中间型三个自然类型采脂试验结果,中间型的产脂力最高,其平均单株产脂力比其它两个类型分别高59%和22%。
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  相似匹配句对
     THE VOLUME AND GUM YIELD ABILITY COMPARISON OF PINE SPECIES
     松属树种生长量和产脂力的比较分析
短句来源
     The yield of Xanthan gum was increasedaveragely by 3.28%.
     得出低浓度的H2O2能提高黄原胶的产量,产胶率平均提高了3.28%。
短句来源
     Its yield is higher by c.
     使用C.
短句来源
     10 yield.
     结果表明,复合肥不同施用量对油研10号的产量产生显著影响。
短句来源
     The Function of Gum and Its Choice
     食品胶的功能性及其选择
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  gum yield
The second gum picking seems to be a decisive factor in gum production and could be used as an indicator for the prediction of the total gum yield.
      
A significant positive relationship existed between the second gum picking and the total gum yield.
      
However, karkadeh reduced the gum yield significantly at high tree density.
      
Late tapping reduced the gum yield by 40% and 50% at the two different locations, respectively.
      
Although the gum arabic yield followed the same trend over time in all stands at both locations, the gum yield from farm stands, whether planted or natural, was 47% to 60% lower than that from research stands.
      
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The paper describes the selecting method of high gum yielding single tree and forest-type of slash pine in natural stands. As a result, the average gum yield of the medium forest-type is 59% and 27% higher respectively than the other two forest types, namely, the thick branches and wide crown,and the thin branches and narrow crown of Pinns ellio-ttii Engelm. If single trees are selected on the basis of "five indexes" (i. e. tree height, form quotient, density of needles, resin duct and living crown...

The paper describes the selecting method of high gum yielding single tree and forest-type of slash pine in natural stands. As a result, the average gum yield of the medium forest-type is 59% and 27% higher respectively than the other two forest types, namely, the thick branches and wide crown,and the thin branches and narrow crown of Pinns ellio-ttii Engelm. If single trees are selected on the basis of "five indexes" (i. e. tree height, form quotient, density of needles, resin duct and living crown length), which give better results than forest-type method, het gum content of highest yielding tree selected is 61~73% higher than average. But the oleoresin composition and quality of rosin and turpentine products are basically the same. Therefore, a combination method using "three natural forest-type" as a basis for initial selection and "five indexes" for final identification could be better for selecting the high yielding gum slash pine.

本文主要阐述了湿地松高产脂力类型和单株的选择方法。根据湿地松林分中存在的粗枝宽冠型、细枝窄冠型、中间型三个自然类型采脂试验结果,中间型的产脂力最高,其平均单株产脂力比其它两个类型分别高59%和22%。如果按照树高、形率、针叶密度、针叶树脂道、活冠长等五项指标进行选择,其选择出来的高产脂力单株比湿地松一般单株的产脂力高61~73%。按五项指标选择可提高选择效果,补充类型选择的不足。因此,在进行湿地松高产脂力优树选择时,可采用“三个自然类型”初选,“五项指标”复选的方法。按“五项指标”选择出来的高产脂力单株与湿地松一般单株得到的松脂成份和产品松香、松节油的质量基本相同。湿地松松脂所含松节油均为优级松节油,其中含β-蒎烯28%左右。松香颜色浅,结晶趋势小,品质良好。

The development of Chinese wood tapping has undergone three stages: (1) 1949~ 1964 , the old upward chipping method with horizontal streaks was replaced by a new downward chipping method, owing to the issue of "Technical regulation for pine olcorcsin tapping ". Since then , gum production intered into a correct path. (2) 1965~ 1985, as tapping workers increased , oleoresin output were increased rapidly as well as the quality were improved. Some achievements in tapping technology, tools and chemical stimulants...

The development of Chinese wood tapping has undergone three stages: (1) 1949~ 1964 , the old upward chipping method with horizontal streaks was replaced by a new downward chipping method, owing to the issue of "Technical regulation for pine olcorcsin tapping ". Since then , gum production intered into a correct path. (2) 1965~ 1985, as tapping workers increased , oleoresin output were increased rapidly as well as the quality were improved. Some achievements in tapping technology, tools and chemical stimulants were obtained in this stage too . (3) From 1986 to present, a lot of important topics for raise in tapping labour productivity has been carried out in scientific researches . Some pine bases for gum tapping has been built gradually . The present situation of pine resources in China was discussed . The authors point out that the ratio of utilized trees for tapping to the whole pine resources is rather high . The limited price of gum rosin in China is supposed according to its international price. Meanwhile, the authors calculate that the gum production in developed areas will be shrinked and transfered to the backward areas in the near future. The paper emphasized that the essential question affecting gum production is low labour productivity. It is necessary to build bases of oleoresin production, select high gum-yielding trees for planting, spread advanced tapping technology and introduce intensive management.

我国采脂事业的发展经历了三个阶段:(1)1949~1965年。完成了由上升式横割旧法采脂向下降式新法采脂的过渡,颁布《松脂采集规程》,松脂生产步入正轨;(2)1964~1985年。采脂人数增加,松脂产量和质量有较大提高;在采脂新工艺、新工具、化学采脂等方面取得一批科研成果;(3)1986年以后。以提高采脂劳动生产率为研究重点,松脂生产逐步转向基地化。文章在分析我国现有松林资源状况以后认为,我国可采脂资源利用率很高。根据国际脂松香价格,提出我国每吨松脂收购价格的极限。同时预测在10年内我国发达地区如劳动生产率不能提高,松脂生产将出现萎缩,部分松脂产区将转移到经济较为落后的地区。强调我国松脂生产的根本问题在于采脂劳动生产率低。要改变这一状况,必须建立松脂生产基地,选育高产脂力良种,推广先进采脂技术,实行集约化经营。

P. elliottii has been cultivated in a large scale in South China because of its fast growth and high yield of gum. It is a pine species introduced from the USA. Results of four years tapping experiments have conformed its high olcoresin productivity and the wood tapping begins from the age of 11 years. The 24-year stands show high oleoresin productivity and can be tapped regularly. There is a great difference of oleoresin productivity between individual trees. In Jiangxi province, wood tapping should...

P. elliottii has been cultivated in a large scale in South China because of its fast growth and high yield of gum. It is a pine species introduced from the USA. Results of four years tapping experiments have conformed its high olcoresin productivity and the wood tapping begins from the age of 11 years. The 24-year stands show high oleoresin productivity and can be tapped regularly. There is a great difference of oleoresin productivity between individual trees. In Jiangxi province, wood tapping should be carried out from April to September. 80% face load on trees which arc planed to be cut in the intermediate fellings is adaptable with wounds healed rapidly. For long-term tapping ,only 60% face load is pcrmitcd. Better site conditions contribute higher yields of oleoresin, so the high gum-yielding trees and good sites should be chosen for cultivating forests of long-term oleoresin extraction.

根据4年来对湿地松的采脂试验结果,11年生的树木已可用于采脂,24年生的林分具有旺盛泌脂能力和进入正常采脂。林木个体之间产脂量的差异相当大。江西以4~9月采脂为宜,间伐植株采脂割面负荷率可达80%。采脂后愈合能力强,如长期采脂割面负荷率以60%为宜。应选择高产脂优树,在立地条件较好的林地上营建长期采脂基地林。

 
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