根出的
- 与 根出的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
In chapter 5,we introduce the De Morgan algebra of metric and investigate the pseudo-metric Uniformity and the pseudo-metric topology and the separation axioms in De Morganalgebra of metric.We establish the Baire category theorem and the Banach contraction theo-rem,the Edelstein contraction theorem and other fixed quasi-atom theorems in De Morganalgebra of metric.In final,we give a sufficient condition for the metrization of a De Morganalgebra of topology.
在第五章里,我们地德摩根代数中引进了伪度量,探讨了伪度量一致和伪度量拓扑以及德摩根度量代数的分离公理,得到了Baire范畴定理、Banach收缩定理、Edelstein收缩定理以及其它不动拟原子定理,最后给出一个德摩根拓扑代数可度量化的充分条件。
-
Lastly,we present an algorithm to isolate real roots of a univariate spline, i.e., computing asequence of disjoint intervals such that each of them contains exactly one real root of agiven spline function, which is primarily based on the use of Descartes\' rule of signs withits B-spline coefficients and de Casteljau algorithm of B?
最后,基于B-样条系数的Descartes符号准则和Bézier曲线的de Casteljau算法,我们给出了一元样条实根分离算法,也就是计算出一列不相交区间,使得每个区间恰好只包含此样条函数的一个实根。
-
Lastly,we present an algorithm to isolate real roots of a univariate spline, i.e., computing asequence of disjoint intervals such that each of them contains exactly one real root of agiven spline function, which is primarily based on the use of Descartes rule of signs withits B-spline coefficients and de Casteljau algorithm of Bzier curve.
最后,基于B-样条系数的Descartes符号准则和Bézier曲线的de Casteljau算法,我们给出了一元样条实根分离算法,也就是计算出一列不相交区间,使得每个区间恰好只包含此样条函数的一个实根。
-
But it becomes difficult to repeated-root cyclic codes, because X -1 can not factor uniquely over a finite ring when n is not prime to the characteristic of the residue field of the ring.
主要内容分为以下几个方面:第一,给出了环F_2+uF_2上长度为2n的重根循环码及其对偶码的结构,进一步讨论了这类重根循环码与单根循环码二者之间的极小Lee-重量关系。
-
Jianchi, Heiyou, and Tongxiangqing were 100%,70%,70% and 23.3%, respectively. Besides root primordium rooting and callus rooting, the rare lenticel rooting was also encountered.
插穗不定根形成的部位除常见的根原体、愈伤组织发根外,还发现了较为罕见的皮孔出根。
-
The peak of the bulge accorded with the vertical line through the posterior convexity of superior articular surface of atlas. The superimpose rate of the vertical line with the M line were 48% to left and 65% to right. The surplus existed in l~2mm to lateral of M line. The exit point of screw was the median point of vertical line on the anterior cortex of lateral mass. The superimpose rate of BB line the line linked with the
寰椎后结节中点及上关节突后凸尖下的骨质弧形隆起的顶点可作为寰椎椎弓根螺钉进钉点的准确标志,上关节突后凸尖及横突尖可作为寰椎椎弓根进钉点的大体标志;沿寰椎椎弓根轴线进钉较为安全,内倾17°,仰角变异大,出钉参照前结节顶点;椎动脉沟中外的厚度及进钉点处寰椎后弓的高度是寰椎椎弓根螺钉固定的主要限制性因素。
-
The results showed that the coefficient of raicel decreased firstly in a short distance, and then kept stable form radicel base to radicel apical.
通过对胚根分支系数研究表明:从根基部到根尖,呈现出先递减,然后保持稳定的趋势,采用经验分布函数表示;同时,用四种分支类型已能描述玉米胚根分支特征,且它们的特征参数在一定范围内随机分布。
-
The results indicated that:(1) plant height and tillering number decreased, and root length, root surface area, root volume and rootlet number increased under drought stress; straw mulched on surface soil and pig manure mixed in soil could improve the growth and morphological property of rice root, while straw mixed in soil and pig manure mulching had no significant effects;(2) the contents of chlorophylls and the activities of SOD, POD and CAT decreased significantly under drought stress, and straw mulching on surface soil and pig manure mixed in soil could restrain these decreases.
结果表明:①干旱胁迫下水稻株高降低、分蘖数减少,根系则表现出主根伸长、支根增多、根表面积和根体积增加;秸秆表施和猪粪混施可明显改善水稻的生长和根系形态,而秸秆混施和猪粪表施的改善作用不显著;②干旱胁迫下叶片叶绿素含量显著降低,超氧化物歧化酶、过氧化物酶及过氧化氢酶活性均显著下降,秸秆表施和猪粪混施能够在一定程度上抑制这种下降幅度。
-
Till today, we have extracted and purified alkaloids from from Macleaya Cordata, Chelidonium Majus L., Tripterygium Wilfordii Hook f., Sedum Sarmentosum Bunge, and obtained pure sanguinarine, ethoxysanguinarine, oxysanguinarine, chelidonine, chelerythrine, ethoxychelerythrine, chelilutine, chelirubine, protopine,α-allocryptopine,β-allocryptopine, coptisine, berberine, corysamine, bocconine; triptolide, tripdiolide, triptonide, wilforddine; N-methylisopelletierine, dihydro-N-methylisopelletierine, sarmentosin etc.
我们对博落回、白屈菜、雷公藤、垂盘草等天然植物进行了大量的提取和分离研究;并分离出了血根碱、乙氧基血根碱、氧化血根碱、白屈菜碱、白屈菜红碱、乙氧基白屈菜红碱、白屈菜黄碱、白屈菜玉红碱、原阿片碱、α-别隐品碱、β-别隐品碱、黄连碱、小檗碱、沙明碱、博落回碱,雷公藤内酯醇、雷公藤内酯二醇、雷公藤内酯酮、雷公藤碱,N-甲基异石榴皮碱、二氢- N-甲基异石榴皮碱、垂盘草甙等单体。
-
The rates of detection and constitution of bacteria in periapical biofilm were statistically analyzed and compared with those in root canals.
统计分析比较根尖生物膜和根管细菌的检出率、构成比,并对不同临床状态下的根尖生物膜细菌检出进行分析。
- 推荐网络例句
-
Fancy gold-plated dangling earrings with facetted White Opal crystals.
花式镀金悬垂耳环与facetted白欧泊水晶。
-
This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.
本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。
-
In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).
在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。