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root burying
相关语句
  相似匹配句对
     Root
     根
短句来源
     Root occupied
     根占总量的24.14%,木麻黄有着发达的根系。
短句来源
     EFFECT OF BURYING BRANCH WITH GRAFTED ROOT ON REJUVENATION OF MATURE TREES OF CHINESE FIR
     杉木优树侧枝接根埋干法的复壮效果
短句来源
     Mysterious Self-burying
     神秘自葬
短句来源
     The Lark Burying Its Mother
     百灵鸟葬母
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The characteristics of ductal adenocarcinoma of colon under eieciror: microscopy were stout and dense microvill, with small roots buried in the top of cytoplasm. The ullrarnorphological changes of carcinomatous infiltration was similar to the picture observed in vitro cultivation of cancer cells.In 104 cases out of 159, there was an over expression of ras oncogenes P21, indicating that carcinoma of colon was related to activation of ras oncogenes. Examination with monoclonal antibodies yielded a positive...

The characteristics of ductal adenocarcinoma of colon under eieciror: microscopy were stout and dense microvill, with small roots buried in the top of cytoplasm. The ullrarnorphological changes of carcinomatous infiltration was similar to the picture observed in vitro cultivation of cancer cells.In 104 cases out of 159, there was an over expression of ras oncogenes P21, indicating that carcinoma of colon was related to activation of ras oncogenes. Examination with monoclonal antibodies yielded a positive rate of 83.4%- 95.7%, indicating that most of the carcinomas had colon related antigens. This phenomenon should play an important role in raising the diagnostic accuracy, and it also should serve as an indicator of effective treatment. In 62 cases of mucoid adenocarcinoma and 30 cases of signet ring cell carcinoma, there was a marked reduction of mueoitin sulfate with an increase in sialic acid mucus. The letter was a glycoprotein containing hydroxyl mucus, and it facilitated the separation of cancer cells to infiltrate and metastasize.in 134 cases, AgNOR was quantified, and there were 13.05± 1.48 granules in each mucleas. There was more abundant AgNOR in undifferentiated cancer, while the number of AgNOR fluctuated between 10.56 to 11.83 in papillary adenocarcinoma, ductal adenocarcinoma, and mucoid adenocarcinoma. indicating the qunantity of AgNOR was related to degree of malignancy in colonic carcinoma.

用多种较先进技术对大肠癌进行研究。结果证明,(1)电镜下所观察到的癌细胞微绒毛粗大、密集、小根深埋在胞质顶部是大肠管状腺癌的超微结构标志。人体内癌细胞侵袭方式的微细形态变化与体外器官培养中所见相似。(2)ras癌基因P21检测,159例大肠癌中104例(65.4%)过量表达,提示大肠癌与ras癌基因活化有密切关系。5种单抗测试的122例中阳性率在83.4%~95.7%之间,说明大多数含有大肠癌肿瘤相关抗原。对提高诊断与治疗水平有重要作用。62例粘液腺癌和30例印戒细胞癌,硫酸粘液显著减少,唾酸粘液明显增多。后者为含羧基酸粘液的糖蛋白,有利于癌细胞脱离群体,向周围侵袭及扩散。(3)134例核仁组成区相关嗜银蛋白(AgNoR)定量检测,每个核颗粒数为13.05±1.48((?)±s)。未分化癌AgNOR量多(19.24),而乳头状腺癌、管状腺癌、粘液腺癌波动在10.56~11.83之间,提示AgNOR定量与大肠癌恶性程度有关。

The experiments of decomposition of fine roots were carried out in pine forest(PF), pine-broadleaved mixed forest(PBF) and evergreen broadleaved forest(EBF) in the Dinghushan biosphere reserve. Regression analyses showed that the power function of X/X 0=e -kt with Adj.r 2(0.989- 0.993) very well fitted with the data of dry mass loss against time(year). The theoretical values of annual decomposition rate of roots with diameter≤2mm derived from the equations were 43.44%, 43.97%, 46.91% for...

The experiments of decomposition of fine roots were carried out in pine forest(PF), pine-broadleaved mixed forest(PBF) and evergreen broadleaved forest(EBF) in the Dinghushan biosphere reserve. Regression analyses showed that the power function of X/X 0=e -kt with Adj.r 2(0.989- 0.993) very well fitted with the data of dry mass loss against time(year). The theoretical values of annual decomposition rate of roots with diameter≤2mm derived from the equations were 43.44%, 43.97%, 46.91% for PF,PBF and EBF respectively and also fitted very well with the measured values(43.15%, 43.90%, 45.68%). Decay coefficients(K) were 0.570 for PF, 0.579 for PBF and 0.633 for EBF. The decomposition rate of roots with diameter of 2-4mm is lower(38.54%) than that of roots with diameter≤2mm.No significant difference of the decomposition rates was found between the decomposing roots buried in mesh bags of 0.25mm and 1.00mm. At the 170th day, about 95% soluble carbohydrate was leached out. At the 300th day, The released rate ranged 20.2%-57.3% for N, 52.3%-82.5% for P, 68.6%-83.4% for K, 75.9%-79.1% for Mn and 41.7%-79.1% for Zn. The negative values(-14.8% to -70.2% for Ca, 5.2% to -59.6% for Mg) implied that a tendency of accumulation for element Ca and Mg occured during decomposition proceses.

鼎湖山南亚热带森林细根分解干物质损失和元素动态温达志(中国科学院华南植物研究所,广州510650)魏平张佑昌(中国科学院华南植物研究所鼎湖山树木园,肇庆526070)孔国辉(中国科学院华南植物研究所,广州510650)DryMasLosandChem...

The plant residue decomposition in alpine swamp soil was studied by using a mesh-bag method at the Haibei Research Station from September 2000 to August 2002. The standing dead matter and root decomposition rates showed clear seasonal change. The most mass loss occurred in the initial stage after sample burial and during the plant-growing season. There was almost no decomposition during the winter freezing season and in the late stage after sample burial. The decomposition rates of plant residue in different...

The plant residue decomposition in alpine swamp soil was studied by using a mesh-bag method at the Haibei Research Station from September 2000 to August 2002. The standing dead matter and root decomposition rates showed clear seasonal change. The most mass loss occurred in the initial stage after sample burial and during the plant-growing season. There was almost no decomposition during the winter freezing season and in the late stage after sample burial. The decomposition rates of plant residue in different months showed significant differences. In the first month after samples of standing dead matter were buried, the decomposition rates of plant residue in swamp meadow were higher than in Kobresia humilis meadow, but afterwards the rates were similar. The decomposition rate of K. humilis roots buried in swamp meadow soil was significantly higher than when buried in K. humilis meadow soil (P<0.01). The correlation analysis showed that the decomposition rates of plant residue correlated with soil microorganism communities, soil temperature and soil water content. The chemical character of the plant residue is also a key factor influencing the decomposition rate.

用尼龙网袋法测定了高寒湿地植物残体的降解动态。结果表明,立枯体和草根的分解率均显示出明显的季节变化,主要失重发生在样品埋放初期和植物生长季节,非生长季节和样品埋放后期分解作用很弱。不同月份植物残体的分解率呈不同程度的差异性,在立枯体埋放的第1个月,沼泽草甸的分解率略高于矮嵩草草甸,以后两草甸的分解率趋于相当;矮嵩草草根在沼泽草甸的分解率显著高于在矮嵩草草甸的分解率。相关分析表明植物残体的降解与土壤微生物群落、土壤温度、水分都有明显的相关关系,植物残体的化学品质也是影响分解率的重要因素。

 
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