白桦      birch(254) white birch(72) asian white birch(11) betula(365) japanese birch(2) betulinic(62) asia white birch(3) betula platyphalla(9) silver birch(4) betulaplatyphylla(0)   birch      The local birch was significantly higher than 1/86 and 2/86,1/86 and 2/86 had no difference.      盆栽条件下的本地白桦显著高于1/86、2/86,而1/86、2/86之间则没有差异; 短句来源      The results showed that,the P_n of the local birch was clearly higher than that of 1/86 and 2/86 in pot and field,1/86 and 2/86 had no difference.      结果表明:在净光合速率方面,田间栽培和盆栽方式下的本地白桦明显高于1/86、2/86,而1/86、2/86之间则没有明显差异; 短句来源      3 The best suitable reaction system of ISSR includes 2.5 mmolL~-1 Mg~(2+) , 10 mmol·L~(-1) 'dNTP, 10 mmol·L~(-1) primer, 1 ×Taq DNA polymerase buffer, and 45 ng template DNA in a total volume of 20 μL. ISSR-PCR reaction system of birch was performed.      3、在系统分析了影响ISSR体系的各种因素基础上,建立了白桦基因组ISSR反应体系及程序:ISSR—PCR,20μL体系:10×buffer 2μL,Mg~(2+)(25 mmol/L)2 μL,dNTPs(10 mmol/L)0.4μL,引物(10 mmol/L)0.8μL,TaqDNA聚合酶1U,模板DNA45 ng 2μL。 短句来源      Study on Drying Properties and Technology of Birch with Thickness of 55mm      55mm厚白桦干燥特性与干燥技术的研究 短句来源      The results showed that in this watershed, the optimal vegetation structure should be 24.86% of natural birch forest, 16.30% of natural Dahurian birch forest, 44.49% of natural broadleaved mixed forest, 10.88% of larch plantation, and 3.47% of grassland.      结果表明:该流域水源涵养林最优植被类型结构为天然白桦林24.86%、天然黑桦林16.30%、天然阔叶混交林44.49%、落叶松人工林10.88%、草地3.47%; 短句来源 更多          white birch      however, only 0.2 g/ml of white birch leaf aqueous extracts had inhibition on radicel growth (p<0.05), and that germination percentage and index of larch seeds were inhibited significantly by 0.1 g/ml of white birch leaf extracts (p<0.05);      0.2g／ml的白桦树叶水浸液仅显著抑制了胚根的生长，而0.1g／ml的水浸液则显著抑制了兴安落叶松种子发芽率和发芽指数(p＜0.05)； 短句来源      The experiment also indicates that the distribution of contents of total phenol was opposite: in white birch, lower parts were higher and in European White Birch, upper parts were higher.      本文研究中还发现,桦树幼苗的总酚含量在白桦和欧洲白桦中有不同的分布,白桦枝条的下部总酚含量较高,而欧洲白桦的枝条上半部总酚含量较高。 短句来源      the tree height increment of Manchurian Ash, White Birch, Dragon Spruce, Larch separately is 5.13, 1.65, 1      水曲柳高生长量是常规造林的5.13倍、白桦是1.65倍、红皮云杉是1.18倍、落叶松是1.90倍； 短句来源      Radicel and embryo length of larch were inhibited significantly by 0.2 g/ml of bark aqueous extracts and white birch leaf volatiles. 0.01 g/mk 0.1 g/ml and 0.2 g/ml of white birch bark aqueous extracts all had inhibitory effects on radicel growth (p<0.05);      0.2g／ml的白桦树皮水浸液和树叶挥发物显著抑制了兴安落叶松种子胚根和胚芽的生长，0.01g／ml、0.1g／ml和0.2g／ml的白桦树皮水浸液均显著抑制了胚根的生长(p＜0.05)； 短句来源      survival percent in 3-years survival percent separately is 93.8% White Birch, 82.7% Manchurian Ash, 93.2% Dragon Spruce, 88.1% Larch, average survival percent is 89.5%;      3年保存率分别是，白桦93.8％、水曲柳82.7％、云杉93.2％、落叶松88.1％，平均保存率为89.5％； 短句来源 更多          asian white birch      The difference between highest and lowest monthly mean values is about 72% in Broad-leaved Korean Pine forest,73% in Asian white birch forest,26% in David poplar forest,56% in Spruce-fir forest,and 144% in Ermans Birch forest.      不同群落细根现存量月动态变化也有较大差异,月均最高最低相差阔叶红松林约为72%、白桦林近73%、山杨林26%、云冷杉林56%、岳桦林144%。 短句来源      The Preliminary Study on Drying Process Traverse Strains of Asian White Birch      白桦木材干燥过程横纹流变特性的初步研究 短句来源      The result shows that the mixed plantation of artificial pure larch plantation and Asian white birch natural forest can quicken the decomposition speed of larch litter, alleviate the contradiction between litter accumulation and litter decomposition, improve the environmental condition of forest land, increase the amount of soil microbe, therefore improve the quality of forest land and promote stand increment.      研究结果表明：人工落叶松天然白桦混交林能加快落叶松凋落物的分解，缓和林地凋落物层积累与分解的矛盾，改善林地环境条件，增加土壤微生物数量，从而提高林地质量。 短句来源      The stress of surface layer of small_diameter Asian White Birch(Betula platyphylla)timber with consecution_heat and intermittent_heating(intermittent 2 h and intermittent 6 h)was discussed.      研究小径木白桦锯材在连续加热方式和间歇加热方式(间歇2h和间歇6h)干燥过程中表层应力的产生、发展变化规律。 短句来源      In order to find this density series, depended upon the data of 200 plots and 391 stem analysis trees for natural forest of Asian white birch (Betula platyphylla )collected in Daxing'an Mountains, of Inner Mongolia, making stand density(N) as control variable, stand volume as state variable, the maximum of total of each period's thinning yield as target function, using the method of dynamic program, the optimal density model of various periods for Betula platyphylla was deduced.      为了找到这一密度系列，根据1994年在内蒙古大兴安岭林管局收集的200块标准地及391株解析木的资料，以立木密度（N）作为控制变量，以林分蓄积为状态变量，以各阶段间伐的总收获量最大作为目标函数，利用动态规划的方法进行推导，得出了天然白桦林的最优密度模型。 短句来源 更多          betula      Optimization of ISSR-PCR Reaction System for Betula platyphylla Suk      白桦ISSR-PCR反应体系的优化 短句来源      Under the CGCM1 scenario,the coverage of Larix gmelinii,Betula platyphylla,Picea jezoensis,Abies nephrolepi and Pinus koraiensis decreased 99.2%,89.9%,85.9%,83.2% and 4.9%,respectively;      在CGCM1方案下,兴安落叶松、白桦、云杉、冷杉和红松的覆盖率分别下降99.2%8、9.9%、85.9%、83.2%、4.9%; 短句来源      2. Leaf explants of Betula platyphalla directly formed adventitious shoots from wound regions within 1 month; when cultured on IS+ (10.0~15.0mg/L) BA+0.5mg/L KT +2%sucrose for 20 days and then transferred to IS+0.4mg/L BA+2%sucrose medium for 10 days.      2.建立了白桦叶片直接出芽的再生系统:即在IS+(10.0～15.0mg/L)BA+0.5mg/L KT+2%蔗糖诱导20天,然后在IS+0.4mg/L BA+2%蔗糖分化培养基中培养15天能达到直接出芽,每片叶片的丛生芽多达20～30个,质量较高。 短句来源      The conclusions were as follows:1.The medium IS+ (3~5mg/L) BA+ 0.5mg/L KT +2%sucrose was the most suitable medium for the induction of callus of Betula platyphalla; The induction rate exceeds 80%.      1.筛选出IS+(3～5mg/L)BA+0.5mg/L KT+2%蔗糖是诱导白桦愈伤组织繁殖的最优培养基,诱导率达到80%以上; 短句来源      Analysis of the genetic effects of seed and seedling traits of Betula platyphylla in a 5×5 complete diallel cross design      白桦5×5完全双列杂交种苗性状的遗传效应分析 短句来源 更多            查询“白桦”译词为其他词的双语例句 japanese birch betulinic asia white birch betula platyphalla silver birch betulaplatyphylla   查询“白桦”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   birch The growth process of natural poplar-birch forests 例句来源       With a combination of permanent and temporary sample plots, we investigated the growth conditions of natural poplar-birch forests. 例句来源       On this basis, the growth of natural poplar-birch forests in the different site classes was studied. 例句来源       Results of this study provide a theoretical basis for the directive cultivation of natural poplar-birch forests. 例句来源       microsperma) (41.15%) >amp;lt; Ermans birch (Betula ermanii) (41.53%) >amp;lt; fir (Abies nephrolepis) (42.62%). 例句来源       更多             white birch Results showed that different planting types had a significant influence on the abundance of larch, Mongolian Scotch pine and white birch. 例句来源       Contrary to larch and Mongolian Scotch pine, white birch had higher abundance under natural regeneration than that under these planting scenarios. 例句来源       Also, the different proportions of larch and Mongolian Scotch pine had an influence on the abundance of white birch. 例句来源       White birch had higher abundance with the increasing proportion of Mongolian Scotch pine. 例句来源       Approaches determining evapotranspiration of a natural secondary white birch forest 例句来源       更多             betula microsperma) (41.15%) >amp;lt; Ermans birch (Betula ermanii) (41.53%) >amp;lt; fir (Abies nephrolepis) (42.62%). 例句来源       Rainfall redistribution of a virgin Pinus koraiensis forest and secondary Betula platyphylla forest in Northeast China 例句来源       koraiensis virgin forest amounted to 98168 mm during a growing season (May to September), which was 19.6 per cent of the total rainfall and 1.3 times that of a secondary Betula platyphylla forest. 例句来源       Quercus liaotungensis, Syringa oblata, Populus davidiana, Prunus davidiana, Betula platyphylla and Toxicodendron vernicifluum can be occasionally found in the tree layer and shrub species are abundant. 例句来源       The dominant tree species in the home ranges of Narcissus Flycatchers is Dahurian Birch (Betula dahurica), whereas Manchurian Walnut (Juglans mandshurica) is the dominant tree species in the home ranges of Yellow-rumped Flycatchers. 例句来源       更多             其他 点击这里查询相关文摘     相关查询: 白桦树脂酸 白桦种苗 白桦林 欧洲白桦 白桦炭疽病 白桦酸 转基因白桦 白桦树汁 白桦树液 北美白桦 白桦木质纤维素 白桦材  对查询结果不满意

CNKI小工具 在Springer中查有关的英文论文 在知识搜索中查有关白桦的内容 在数字搜索中查有关白桦的内容 在概念知识元中查有关白桦的内容 在学术趋势中查有关白桦 的内容

CNKI主页 |  设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务

2008 CNKI－中国知网

京ICP证040431号 互联网出版许可证 新出网证(京)字008号 北京市公安局海淀分局 备案号：110 1081725  2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社