查询词典 k

In order to probe into classification and recognition method for planar figures in effect, a class of complete orthogonal piecewise k -degree polynomials, so-called U-system, is introduced.

为了探索有效的图形分类与识别的新方法，引进一类正交完备的分段 k 次多项式系统。U-系统是一类属于 L 2[0，1]的正交完备分段k次多项式系统。

Those formed during the flare-up period, i.e., the Pana Formation, however, show significant geochemical variations from low-K tholeiitic through calc-alkaline to shoshonitic compositions coupled with increasing enrichment in LREEs. Therefore, the volcanic successions are divided into four suites, namely, calc-alkaline suite, low-K suite, high-REE suite and shoshonitic suite.

在大喷发时期产生的火山岩最不均质，组成从低钾拉斑质、钙碱质变化到钾玄质，并且呈现不同程度的轻稀土元素富集，我们据此可将本期林子宗火山岩区分为钙碱质系列（calc-alkaline suite）、低钾系列（low-K suite）、高稀土系列（high-REE suite）和钾玄系列四类。

Temperatures in the dark centers of sunspots drop to about 3700 K (compared to 5700 K for the surrounding photosphere).

太阳黑子的温度在黑暗的中心，下降至约3700度（5700 K中比周围光球）。

Rb-Sr isochron age of porphyroid fine granite most closely related with molybdenum mineralize is 154Ma,K-Ar isochron age is 152Ma.

研究表明，分布广泛的似斑状中粗粒花岗岩K—Ar年龄为219—188Ma，与钼矿化有密切关系的似斑状细粒花岗岩Rb—Sr等时线年龄为154Ma，K—Ar等时线年龄为152Ma。

K and Rb also show a good relationship. These characteristics are similar to things of typical porphyry deposits in China and abroad.

矿石富K贫Na，以及K与Rb具有良好的相关性的特点均与国内外典型的斑岩铜矿床相似。

In the following two cases:(1)gcd = 1 ;(2)N = p~v, where p denotes thecharacteristic of the finite field GF, by using the factorization of the polynomialin finite field, the counting function N_(N,0) is showed, the expected value of thelinear complexity E_(N,0) is determined, and a useful lower bound on the expectedvalue of the k-error linear complexity E_ is established.(7) The stability of the lattice structure for pseudorandom number sequences is putforward.

利用多项式的因式分解等简单工具，研究了任意有限域GF上，周期N与p互素以及N = p~v这两种情况下，计数函数NN，0 的值，即线性复杂度为c的N-周期序列的个数，并给出了线性复杂度的数学期望EN，0的值以及k-错线性复杂度的数学期望EN，k的一个有用的下界，这里p表示有限域GF的特征。

The better labeling conditions are as follows:dry acetonitrile as solvent, the mole ratio of K/222 to K 2CO 3 is 1∶1, reaction time is 5 min at 80 ℃. The radiochemical yield is about 57% which is about 3 times higher than the published data.

得出较佳标记条件：以无水乙腈为溶剂，K/ 2 2 2与K2 CO3 摩尔比为1，80℃下反应 5min ，标记率为 5 7%，比文献值提高了 3倍以上。

Many factors affecting the radiochemical synthesis of 18 F SFMB including reaction solvents, temperature, the mole ratio of K/222 to K 2CO 3 and reaction time are studied.

探讨了反应溶剂、温度、K/ 2 2 2与K2 CO3 的摩尔比及反应时间等诸因素对18F SFMB放化合成的影响。

Moreover, a recursion formula involving the Kth and (K+1)thpolymer moments are deduced. As a result of the recursion formula, theexpressions of the 0-th, 1-th, 2-th and 3-th polymer moments as wellas the number-, weight- and Z-average molecular weight are obtained.

得到这两类反应体系的K次和（K+1次高分子矩的递推公式，分别计算了两类反应体系0、1、2和3次高分子矩，进而得到了相应的数均，重均，Z均分子量。

Check method of residual error was used to judge data error, as if sum of front K residual error was unlikeness with sum of back n-K residual error in measure row, it shown that exist linear system error in measure row.

使用残余误差校核法，若测量列中前K个残余误差之和与后个残余误差之和不相等，则测量列存在线性系统误差。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。