查询词典 structure formula

On the basis of the Okumura model, the empiric formulas suitable for computers are fit out through the regression method. Such empiric formulas include the Hata model formula applicable to the GSM900 macrocell and the COST 231-Hata model formula applicable to the GSM1800 macrocell.

在Okumura模型的基础上，利用回归方法拟合出便于计算机计算的解析经验公式，这些经验公式有适用于GSM900宏蜂窝的Hata模型公式、适用于GSM1800宏蜂窝的COST 231-Hata模型公式等。

With American head lettuce as tested material, the rectangular hydroponic mode with gas-charged static nutrient solution was adopted, 6 different formula treatments including NO3(superscript -):NH4(superscript +)=80:20, 70:30, 60:40, 50:50; NO3(superscript -) replaced by CO (NH2) 2 as well as CK were set up and each formula was prepared by using groundwater directly to study the effects of different substitution amounts of nitrate nitrogen on growth status, root activity and chlorophyll content of lettuce.

方法］以美国结球生菜为试材，采用充气式静止营养液矩形水培方式，设定NO3：NH4=80：20，70：30，60：40，50：50；CO(NH2)2代替NO3以及对照共计6种不同的配方处理，各配方直接利用地下水进行配制，研究硝态氮不同替代量对生菜生长状况、根系活力和叶绿素含量的影响。

The third type of formula can only meet the occipital hobber didn't go to an offset printing press for offset press since hobber in regulating rubber roller roller and nano-imprint lithography, clearance between the plate cylinder and penetrated the rubber roller is no need for regulation, walk for offset printing presses in the hobber business card printing and membership card making paper thickness greater than 0.10mm the above with a formula for the calculation and adjustment.

第三栽筹算公式只能满意不行滚枕的胶印机，而行滚枕的胶印机由于在调度橡皮滚筒与压印滚筒之间的间隙之后，印版滚筒与橡皮滚筒之间的间隙必须举行调度，那行滚枕的胶印机在制卡和会员卡制作纸张的厚度大于0.10mm以上不离用第二栽公式举行筹算与调度即可。

By introducing a generalized Frenet formula for holomorphic 2-spheres in G a generalized Pl\ucker formula is given.

文中对G中的全纯S^2引进了一个广义Frenet公式，并由它得到了广义Pl\ucker公式。

First have a research on the properties and formula of spreading of spin networks, then disccuss in detail holonomy and several important relation formula in spin networks. At last, give knet polynomial relating to spin networks and its proof.

对自旋结网圈的性质及展开式进行研究，详细讨论了自旋结网圈中的holonomy及几个重要关系式，最后给出了与结网圈相关的结多项式及其证明。

One kind is using the particular solution of the indefinite equation, which can be obtained by the property of the prime number , and the foundation system of solution of its corresponding homogeneous equation ,obtains its solution formula. Another kind is under the foundation of the matrix primary line transformation, and with the aid of some knowledge of numeral theory, obtains its solution formula.

一种是利用该不定方程的一个特解和其相对应的齐次方程的一个基础解系，得出该不定方程的求解公式，而这个特解可以由素数性质得到；另一种是在矩阵的初等行变换基础上，借助一些数论知识，得出该不定方程的求解公式。

The problem isdiscussed and the error caused by using the approximate formula proves to be superior to that caused by using the homogeneous Taylor's polynomial and an expression is proved to be similatr to the remainder in Taylor's formula.

由讨论这个问题出发，证明了用这种近似式产生的误差，优于用同阶Taylor多项式产生的误差，并给出这个误差的一个类似于Taylor公式余项的表达式。

First, in the horizontal positioning accuracy aspect of total-station instrument, point out the importance of direction, distance to correct calculation and coordinates to convert, give coordinates calculated formula of single intersection point of non-symmetry type of horizontal curve, deduce to square–error's calculated formula of horizontal coordinates and point space by polar coordinates positioning methods, and analyze the main influence factor of square–error.

首先，在全站仪的平面定位精度方面，指出方向、距离归化计算和坐标转换的重要性，给出单交点非对称型平曲线坐标的计算公式，导出极坐标定位法平面坐标和点位中误差的计算公式，并分析中误差的主要影响因素。

By using this method we obtain two gen-eralized transformation formulae of q-integral form,two identities of basic hypergeometric series,as well as formal extensions for q-Pfaff-Saalschütz formula,q-Chu-Vandermonde identity and a three-term transformation formula of _3φ_2-series.

我们推广了两个q-积分形式的变换公式和两个有关基本超几何级数的恒等式，还得到q-Pfaff-Saalschütz公式、q-Chu-Vandermonde恒等式和基本超几何级数中一个有关_3φ_(2~-)级数的三项变换公式等的形式推广。

Mechanism of frosting formation for airside heat exchanger is analyzed, the existing problems in the formula of frost density change being used now are pointed out, and the accurate formula of it is firstly concluded from the ideal gas state equation and Clapeyron-Clausius equation.

分析了空气源热泵冷热水机组空气侧换热器结霜的机理，笔者指出了目前计算用于霜密度变化的结霜量变化率公式中存在的问题，提出了根据理想气体状态方程和Clapeyron-Clausius方程推导出的计算用于霜密度变化的结霜量变化率的公式。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。