查询词典 A.B.

DGS-B glass reinforced plastics is acerbity mist purify a tower one, overview DGS-B glass reinforced plastics is acerbity mist purifying a tower is our company combine me according to equipment of foreign off-gas treatment the equipment of new generation off-gas treatment that company acid mist handles a tower to improve.

DGS-B型玻璃钢酸雾过滤塔一、概述DGS-B型玻璃钢酸雾过滤塔是本企业依据海外污气安排配置联系我企业酸雾安排塔改善的新一代污气安排配置。

On the basis of the conversion relation of inverse matrix and adjoint matrix, by using 1/ω instead of |B'(xBx(subscript k|, a new Landweber iteration formula x(superscript δ subscript k+1)=x(superscript δ subscript k)-ωB'(x(superscript δ subscript k)Bx(superscript δ subscript kB'x(superscript δ kf(x(superscript δ subscript k)-y(superscript δ)is constructed for solving rank deficiency nonlinear least squares problem, with which the phenomenon that leads to ill-posed problem because the iteration matrix is rank-deficient and very ill-conditioned in numerical iterative process is avoided.

基于逆矩阵和矩阵伴随算子的换算关系，并用1/ω代替|B′(xBx(下标k|，构造出一个新的求解秩亏非线性最小二乘问题的Landweber迭代格式，x(上标δ下标 k+1)=x-ωB'(xBx(上标δ下标 k*B'x(上标δ下标 kf(x-y，从而避免了在迭代过程中由于迭代矩阵的秩亏和病态而产生的不适定现象。

METHODS: A retrospective study of outcome of LASIK (Allegretto excimer laser system and Moria C-B microkaretome) for predominant myopic astigmatism (group A, 28 eyes) and normal myopic astigmatism (group B, 30 eyes).

分析LASIK技术（鹰视准分子激光系统和MORIA C－B微型角膜刀）治疗以散光为主眼(A组，28眼)和以近视为主眼(B组，30眼)的术后结果。

THE FIRST TOTAL SYNTHESIS OF TAXAMAIRIN B Taxamairin B, representive of rare naturally-occuring rearrang-ed 9(10→20)-abeo-8, 11, 13-triene diterpenoids, has been firstsynthesized by a eleven-step route in an overall yield of 8.19%,starting from commercially available catechol and 1,3-cyclohexan-dione. The improved Friedel-Crafts annulation, thermodynamicallycontrolled-geminal pairing methylation, the selective oxidation ofallyl group and the selective reduction of the less-hindrancecarbon-carbon double bond are the key steps.

二。美丽红豆杉素B的全合成研究 1，美丽红豆杉素B的首次全合成以价廉，易得的邻苯二酚和1，3-环己二酮为原料，经过改良的Friedel-Crafts烷基化反应，热力学控制的α，β-不饱和酮结构的α一位双烷基化，烯丙位的选择性氧化，以及选择性还原位阻较小的碳碳双键等十一步反应，以8.19％的总收率首次完成了美丽红豆杉素B的全合成。

A combination of B and SA may enhance the antimalarial effect against P.b and reverse the SA-resistance of P.b and delay the occurrence of resistance to SA in N.

采用 B和 SA联合用药对 P.b的抑制作用具有增效作用，能逆转 R对 SA的抗性及延缓 N对 SA抗性的发生。

A method of construct a quadratic uniform B-spline curve through data points is given.If the relative curvature of a certain curve on the first control point and the direction angle of the first port's tangent vector is given,here can get the whole curve by using the character of the port of quadratic uniform B-spline curve.

提出了一种二次均匀B样条插值曲线的构造方法，首先给定某一段曲线首点的相对曲率和该段曲线的首端切矢量的方向角，利用二次均匀B样条曲线的端点性质，求出其余各段曲线控制顶点，来生成整条插值曲线。

When the valve C dextrocardia access loop, due to the flow through the control valve B than A small adjustment, so enter the flow of hydraulic cylinder controlled by a control valve B.

当阀C右位接入回路时，由于通过调速阀B的流量调得比A小，因此输入液压缸的流量由调速阀B控制。

It was confirmed by Log-rank test that the cardiac allografts in group B and group C all survived longer than those in group A significantly (p.01). The survival time of the cardiac allografts in group C was also longer than those in groups B (p.05), which suggested that the recipients which pretreatment with SPC and CP was more efficient than that with CsA.(2)TGF-β1 is expressed as buffy granules in cardiac muscle and blood vessel dissepiment.

对数秩检验(log-rank test)证实，B组移植心脏的存活时间较A组明显延长，差异具有极显著性(P.01)；C组移植心脏的存活时间较A组也明显延长，差异极其显著(P.01)；将B、C两组移植心脏的存活时间进行比较时表明二者之间仍具有显著性差异(P.05)，说明SPC和CP联合预处理对移植心脏的存活时间的延长效果优于应用免疫抑制剂CsA组。2）TGF-β1阳性表现为心肌细胞浆及血管壁内出现棕黄色颗粒。

In the recapitulation, Borodin begins this second theme in E , an enharmonic major 3rd above B , thereby creating a logical counterpoise to the theme's statement in the exposition a minor 3rd above B and extending the interplay between major and minor 3rd to a structural level.

在再现部，鲍罗丁以 E 音， B 音上方的一个不和谐的大三度，开始了这个第二主题，从而营造出与呈示部主题陈述， B 音上方小三度的一个逻辑上的平衡，然后将大小三度的交替延伸到结构性的层面。

As B stands to A in terms of truth, so C and D together stand to A and B together.

就像在真实性上 B 对于 A 的关系一样， C 和 D 共同与 A 和 B 的关系。

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。