- 更多网络例句与积和相关的网络例句 [注：此内容来源于网络，仅供参考]
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Firstly, we give out the definitions of L-graph and partial L-subgraph, and we ob-tain some properties of partial L-subgraphs. Secondly, continuous mapping is intro-duced respectively between L-graphs and between L-cotowers, and the relationshipbetween the category L-FG of L-graphs and the category FG_L~C of L-cotowers isstudied. At last, we study the finite topological property of the category L-FG, andgive out the concrete constructions of finite product and finite coproduct.
本章首先给出了L-图和部分L-子图的概念，得到了部分L-子图的若干性质；其次，给出了L-余塔的概念，在L-图之间和L-余塔之间分别引入连续映射，研究了L-图范畴L-FG和L-余塔范畴FG_L~G之间的联系；最后，研究了L-图范畴L-FG的有限拓扑性质，给出了L-图范畴L-FG的有限积和有限余积的具体构造。
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Further,we findalso that groups in Saito's results may be replaced by right groups;secondly we mainly investigatethe semidirect products and wreath products of P-regular semigroups;Finally we shallcharacterize the sandwich matrice of completely simple P-regular semigroups,and investigate thestructure of P-regular semigroup whose C-set satisfies a permutation identity.
在这一章中，首先指出Saito在研究半群的半直积和圈积时，对S的限制是不必要的，证明了Saito结果中群可换为右群；其次，研究P—正则半群的半直积和圈积；最后刻划了完全单P—正则半群的夹心阵和C—集满足置换恒等式的P—正则半群的结构。
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A hybrid convolution was used to analyze the assembly functions of linear dimension chain and nonlinear dimension chain.
采用混合卷积法对线性尺寸链和非线性尺寸链的装配函数进行统计公差分析，混合卷积法是解析卷积和数值卷积的结合使用。
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The coefficient of variation CV was lower than 5%, and comparing with that of ektacytometry, we found that there was a good correlation between the measuring results of the two methods.
该测量方法虽受红细胞压积和悬浮介质电导率的影响和限制，但只要在仪器测量范围内，严格控制压积的一致性，其测量的重复性和准确性是可以保证的。
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After introducing the basic knowledge of geometric algebra such as outer product,inner product and geometric product,this paper focused on the CGA description and computation with graphic reflection,rotation,translation,rigid body motion and screw motion,and gave the experimental demonstrations.
在简单介绍外积、内积和几何积等基本概念之后，重点论述了共形几何代数在图形反射、旋转、平移等变换和刚体运动、螺旋运动等方面的描述和计算方法，并给出了实验示例。
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By means of two different methods, the author derives a general equation for expanding the product of two Jacobis triple products, which can be considered as the common generalization of the quintuple, sextuple and septuple product identities.
利用两种不同的方法，作者建立一个关于两个Jacobi三重积之乘积展开的广义公式，它可以看作是五重积，六重积和七重积恒等式的统一形式。
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The results showed: the major causes were obstacle of seed vessel, seed embryo dormancy and post-maturation; the major methods were treatments of hypothermal stratification and growth regulators; naked layer stratification and sand layer stratification had cosistent effect on relieving seed dormancy; hypothermal stratification with GA3 500~1000mg/L for days could relieve seed dormancy, compared to sand stratification it shortened 30 days, and its germiation percentage was higher than that of sand stratification.
结果表明，引起砂梨种子休眠的主要有种皮障碍、种胚休眠和种胚后熟；而解除休眠的主要方法为低温层积处理和植物生长调节剂处理。裸层积和沙层积在解除种子休眠上的发芽效果是一致的，使用GA3溶液浸种，不能完全打破种子休眠，用GA3 500~1000mg/L低温层积30d即可解除种子休眠，比直接沙层积缩短30d，其发芽率比直接沙层积高。
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Deep-water carbonate sediments include allochthonous carbonate sediments released from shallow water by gravity flow and carbonate contourite arid static autochthonous deep sea carbonate sediments.
深水碳酸盐沈积包括深水重力流作用形成的异地沈积和非重力流沈积，在非重力流沈积中又有深水牵引流（等深流、内波、内潮汐等）沈积和静态原地碳酸盐沈积。
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But in many reinforcement projects, some unfavourable geological are encountered frequently, such as colluvial soil, residual soil, slope wash, etc., which result in collapse of borehole and clip of bore rod during drilling of borehole that will bring considerable difficulties to construction and many incipient faults for construction quality.
但是，锚固工程常遇到各类不良地层（例如塌积、残积、坡积和崩积层等碎石土地层），在锚固施工的钻孔中由于严重的塌孔、卡钻，给施工带来很大困难，同时也给锚固工程质量带来隐患。
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Presence of multiples leads to poor quality in main stages of offshore seismic data processing, such as velocity analysis, stacking and imaging. Three basic multiple attenuating methods are reviewed; and a more effective multiple attenuator is achieved by joining them. As the first step, shot or receiver records are extrapolated by wave-equation datum algorithms. The extrapolation will establish a model of waterbottom multiples. Waterbotton multiples will then be removed by subtracting the extrapolated records from the original records. After that, predictive deconvolution is used to attenuate the multiples created by source ghost. Finaly, RADON transformation is adopted to separate peg-leg multiples and residual water-bottom multiples from the original data in the τ-p domain.
地震勘探尤其是海上地震勘探中存在着各类多次波，由于多次波的存在严重影响了速度分析、叠加、偏移成像等地震资料处理，海上多次波主要有全程多次波和层间多次两大类，为了压制海上不同类型的多次波，本文首先分析波场外推、预测反褶积和拉东变换衰减不同多次波的理论基础，然后联合采用这些方法，分别衰减全程多次波和层间多次波；即：首先对炮记录或者接收点记录进行波场外推，建立海底多次波模型，预测并减去全程多次波，然后利用预测反褶积衰减掉周期性明显的多次波，最后将数据转换到τ-p 域，用拉冬变换根据同一时间多次波和有效波在速度等方面的差异，进一步分离层间多次波和剩余的全程多次波，并在该域中切除分离出的多次波，从而实现联合多次波衰减处理。
- 更多网络解释与积和相关的网络解释 [注：此内容来源于网络，仅供参考]
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extended Cartesian product：广义笛卡尔积
4.广义笛卡尔积(extended cartesian product)设关系R和S的元数分别是r和s,定义R和S的笛卡尔 积是一个(r+s)元元组的集合,每一个元组的前r个分量来自R的一个元组,后s个分量来自S的一个元组.若R有k1个元组,S有k2个元组,则关系R和关系S的广义笛卡尔积有k1×k2个元组,
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pleural effusion：胸腔积液
胸腔积液(pleural effusion) 是指在病理情状况下因各种全身性疾病或胸肺疾病本身造成的胸膜腔内贮存过多的液体. 对胸腔积液要作出一个准确和全面的病因诊断,必需懂得病人的胆囊炎由什么引起的、症状和体征,并进行必要的实验室和特殊检查,
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product and sum formula：和积互变公式
product 乘积;积 | product and sum formula 和积互变公式 | product rule 积法则
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product and sum formula：和积互变公式Btu中国学习动力网
product 乘积;积Btu中国学习动力网 | product and sum formula 和积互变公式Btu中国学习动力网 | product rule 积法则Btu中国学习动力网
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sum of powers：幂和
sum of order types 序型的和 | sum of powers 幂和 | sum of products 积和
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Sum of products：积和
Sufficient statistic, 充分统计量 | Sum of products, 积和 | Sum of squares, 离差平方和
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sum of products of mean deviations：离均差积和
sum of products 积和,乘积之和 | sum of products of mean deviations 离均差积和 | sum of products 积和=> 乘积之和
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sum of sequences：集和
sum of products 积和 | sum of sequences 集和 | sum of series 级数的和
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sum of series：级数和
sum of products 积和=> 乘积之和 | sum of series 级数和 | sum of spiral vector 螺旋矢量和
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abraum salt：层积盐 废盐(主要是钾盐和镁盐, 层积在石盐矿床上)
abrator | 抛丸清理机 喷丸清理机 喷丸清理装置 | abraum salt | 层积盐 废盐(主要是钾盐和镁盐, 层积在石盐矿床上) | abraxas | 古时刻在玉石上避邪的文字, 刻有这种符的玉石