英语人>网络例句>和指数 相关的搜索结果
网络例句

和指数

与 和指数 相关的网络例句 [注:此内容来源于网络,仅供参考]

Total of 161 and 166 bands were obtained respectively,and 23 random primers were used to amplify the genomic DNA of the wild and captive green peafowls.The average relative hereditary distance of the wild and captive green peafowls is 0.0555 and 0.1355 respectively;and the Shannon diversity index is 0.4348 and 1.0163 respectively.There is a prominent differentia between the two populations by T-Test of HO.

用23个随机引物,野生与笼养绿孔雀分别获得161和166个扩增片段,计算发现野生与笼养绿孔雀的种群内平均相对遗传距离分别是0.0555和0.1355,两种群间的为0.1635;两种群的Shannon多样性指数平均分别是0.4348和1.0163,有显著性差异。

The result showed that the LUCC of oasis is evident and its spatio-temporal difference is obvious; the index of state and trend in the whole oasis is 0.34, which shows that the transition of type in the oasis presents the characteristics of the bi-directional situation, quasi equilibrium state and regional difference; the indexes of state and trend in the upper and middle part of oasis are 0.63 and 0.56 respectively, which show the non-balance state; the index of state and trend in the lower part of oasis is 0.27, which presents the quasi equilibrium state.

结果表明,三工河流域绿洲LUCC变化显著,时空差异明显;整个绿洲LUCC的趋势和状态指数是0.34,类型转换呈现双向的态势,处于准平衡状态,并出现一定的地域分异,其中绿洲上部和中部分别为0.63和0.56,处于非平衡状态,绿洲下部为0.27,处于准平衡状态。

Based on the prediction model for uncatalytic double base propellant burning rate the dissertation, carrys on the mathematical treatment to the hypothesis of polyemerization and disintegration, deduces the formula of catalytic double base propellant burning rate and pressure exponent; The results of experimental tests show that it can re-present quantitatively various stage of plateau combustion: super rate, plateau and mesa. The calculated results conform with the experimental results very well.

在非催化双基推进剂燃速预估理论的基础上,对聚合裂解的假设进行数学处理,导出催化双基推进剂的燃速公式和燃速压力指数公式;实验验证结果表明,模型中的公式可以定量地再现双基平台推进剂燃烧中的超速,平台和麦撒现象,而且计算值和实测值符合得较好。

It analyzes the effects of the pollution severity and the altitude or atmospheric pressure on the flashover voltage or the flashover gradient. It is shown that FOV is determined by the configuration, and the insul...

结果表明:合成绝缘子的污闪电压与伞裙结构有密切关系;在同样的最短干弧距离下,简单伞形结构的合成绝缘子具有更高的污闪电压和污闪梯度,对于伞形结构复杂的合成绝缘子,虽然其爬电距离提高了,但其污闪电压没有明显提高;高海拔下合成绝缘子的气压影响特征指数n大于瓷和玻璃绝缘子,并受伞裙结构形式、污秽程度的影响,且随着污秽程度增加,n逐渐减小,此外,染污方法和方式对n也有一定影响但不明显。

At large scale, the result of comparing of optimization structure of forest type with the present structure of forest type illustrates that the present economical forest area is larger while the mixed forest is smaller. So decreasing economical forest area and increasing mixed forest area should be the main measurements to optimize spatial patterns. At small scale, the evaluation of the landscape inner structure index illustrates that the forest structure and coverage is smaller, which should be regulated and so the uneven-aged, multi-layered and mixed forest should be the object of the forest structure design.

大尺度上根据植被类型优化结构和现有植被类型结构数据的对比分析可知,现有经济林面积则过大,混交林面积较小,因此主要是减少经济林面积,改造针叶和阔叶纯林为混交林,从而增加混交林面积,以达到最优植被类型结构时的空间配置;在小尺度上通过对景观内部结构指数的计算分析可知,该区林分结构和郁闭度分指数值较小,应予以着力调整;由研究结果可知,异龄、多层次、混交的水源保护功能最好,因此稳定的林分结构设计目标就是尽量使林分形成异龄、多层次、混交林。

We proposed the time-changed dynamic models of radar signals based on dynamic theory, and can analyze quality and quantity of the deinterleaving pulse train;(2) We proposed the algorithm to computer selfsimilarity exponent and detect successfully the object echo buried in noise according to self-similarity of noise and nonsimilarity of sine wave;(3) We also proposed a nonlinear dynamic filtering detection model.

1根据动力学理论,提出了雷达信号的时变动力学模型,利用这个模型可以对已经分选出来的雷达信号进行定性和定量分析;(2)提出了快速计算自相似性指数的算法,并利用噪声和正弦波分别具有自相似性和不具有自相似性的特点,成功地检测到淹没在噪声中的目标回波;(3)提出了一种非线性动力学滤波检测模型。

In the last 12 months, its emissions of sulphur dioxide and particulates have come down by 12 per cent and 18 per cent, respectively.

整体而言,在二○○四年空气污染指数超过 100的日数和时数分别为87天和1,250小时;而在二○○五年的已下降致49天和485小时。

Select a combination of spindle and speed that gives a minimum scale reading of 10 and preferably in the middle or upper portion of the scale.

Z E: K 选择锭子和速度的综合指数,它给于最小的刻度10和最合适的是在刻盘的顶部和中部。

The submodel quantitatively characterized the impact of genotypic differences on sowing date and sowing rate by tillering ability and percentage of final spikes to effective tillers, and the suitable pre-winter leaf number on main stem in relation to yield target is quantified according to the principle of determining spike number from yield level and leaf number from spike number.

其中,播前方案设计的知识模型包括产量目标,品种选择,播期确定,基本苗及播种量的计算,氮、磷、钾肥料运筹和水分管理;动态调控指标的知识模型包括适宜生育期,穗分化进程,群体茎蘖动态、叶龄动态、叶面积指数动态和干物质积累动态等生长指标动态以及有效叶面积率、高效叶面积率和粒叶比等源库指标。

Meanwhile, tree species in the upper canopy layer were more stable than that in the lower layers of the fragmented forest.

与连续森林比较,片断热带雨林的植物物种丰富度和物种多样性指数都比较低,而且有相当低比例的大高位芽、中高位芽和附生等生活型植物,而藤本、小高位芽和矮高位芽等生活型植物的比例则较高;泛热带、热带亚洲至热带非洲的区系成分比例较高,而当地成分则减少;群落的上层树木比下层树木更加稳定。

第86/100页 首页 < ... 82 83 84 85 86 87 88 89 90 ... > 尾页
推荐网络例句

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。