平方

The polymer structure is characterized with IR, NMR and is proved to be PASP. The suitable reaction temperature and time are 220℃～240℃ and 3-4 h at no catalyst in the fields of scale inhibition and fertilizer synergia.

反应机理和实验数据表明，在本文研究范围内，无催化的缩聚反应属于三级反应，生成聚合物聚合度的平方与天冬氨酸初始浓度的平方和反应时间成正比。

He was more than six feet high, was in the prime of life, had small feet for his height, wore coarse, square-toed boots and smoked a Trichinopoly cigar.

照他的身材来说，脚小了一点，穿着一双粗平方头靴子，抽的是印度雪茄烟。他是和被害者一同乘坐一辆四轮马车来的。

The seedling establishment of Tsuga longibracteata in elliptical gap (area 118 m^2) center, middle, edge and under canopy of T. longibracteata forest were studied by seed burial experiments from December 2003 to January 2005 in Tianbaoyan National Nature Reserve of Fujian,China.

通过2003年12月到2005年1月对福建省天宝岩国家级自然保护区长苞铁杉林内椭圆形林窗（面积118平方公尺）中心、中部、边缘和林下样地进行种子埋藏及幼苗定位观测实验，研究了长苞铁杉幼苗在林窗不同位置中的建立。

Multiple linear regression is the simplest way to build the relationship between the several explanatory variables and response variable. However, MLR often causes the estimated regression coefficients unstable or even unaccessible when the number of explanatory variables is more than that of objects. Especially, the explanatory variables are highly intercorrelated which called multi-collinear data. Therefore, many methods have been developed to analyze multi-collinear data, such as variable selection methods, ridge regression, principal components regression and partial least squares regression.

当要同时建立多个解释变数与反应变数间的关系时，最简单的方式是以复回归来处理，但是当解释变数数目远多於样本数，或者变数之间具有高度相关性时，会使得回归系数的估计变得不稳定甚至无法求得，这样的资料又称为共线性资料，在面临这样的资料时可以利用变数选取的方式降低资料组的维度，或者以脊回归、主成分回归及净最小平方回归等方法来灭种共线性的干扰。

According to the experimental data,using the best square approach way,the linear extent magnetostriction properties equation of Terfenol-D material is made,then the magnetostriction properties equation under a unconstant preloading is educed.

根据实验数据，利用最佳平方逼近的方法，确定了Terfenol-D材料线性范围内的磁致伸缩特性方程，并进而得出了变载荷磁致伸缩特性方程。

To overcome the quadratic variation terms of stochastic control and the uncontrollability in chained system, a novel control design procedure is constructively proposed, which involves the introduction of a time-varying technique and the application of quartic Lyapunov function.

为了克服随机控制过程中出现的平方漂移项以及链式

The optimum conditions of extracting WUAX by Ba2 are as follows: WUS (the water unextractable substance that removed protein and starch):Ba2 is 1:188, the extraction temperature is 63°C, the extraction time is 3h, the extraction rate is 31.60%.

Ba2提取WUAX的最佳工艺条件为：料液比1：188，提取温度63℃，提取时间3h，提取率为31.60%；方差分析结果显示各因素对提取率影响的模型显著(P.05)，提取温度的平方项对提取率的影响高度显著(P.001)；最佳工艺条件下得到的提取物中WUAX含量为92.09%。

Note: When the canvas is squared, I put a staple on each of the corners, on the middle of the mitre line of the corner, on the top of the wood as it lies flat on the floor, because the stretchers tend to wriggle around during the actual stretching of the canvas, and get unsquared.

注：当画布，是平方，我把主食每个角落，对中间的人字线的一个角落，对顶部的木材，因为它所在单位在地板上，因为担架往往蠕左右在实际拉伸的油画，并得到

The CVD is an important index to indicate tree diameterdifferentiating.On basis of dynamic change and tendency of CVDamong trees in stand,three models of square CVD are proposed.i.e.,basic model,stand factor model,and thinning effects model.All threemodels are of mechanism,asymptotic characteristic,and invariance forprojection length.Futhermore,there are compatiability and extremevalues in thinning effects model for thinned and unthinned stands.

直径变动系数是描述林木直径分化的重要指标，根据林木直径变动系数的动态变化和趋势，本文提出了直径变动系数平方动态变化的三个模型：基本模型，与林分因子相关的模型，考虑间伐效应的模型，上述三个模型均具有一定的机理性、渐近性和步长不变性，特别是考虑间伐效应的模型为间伐林分和未间伐林分的相容性模型，它还具有相容性和极值性。

The results show that the microstructure of the cladding wire by drawing at room temperature is vimineous grain as fibril shape from prime equiaxed grain. The fibril diameter is in inverse proportion to deformation and the fibril length is in direct proportion to the square of deformation approximately. The ultimate tensile strength of the cladding wire by drawing at room temperature goes up in direct proportion to square root of deformation, whereas the elongation decreases and fluctuates.

结果表明：显微组织自原始的等轴晶变为细长条纤维状，纤维直径与形变量近似地成反比，纤维长度与形变量的平方近似地成正比；经室温拉变形的铜包铝线的极限抗拉强度随形变量增大而增大，与形变量平方根呈直线关系；延伸率随形变量增大逐渐降低，但延伸率波动较大。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。