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objective to study the clinicai effect of combined modality therapy on neonatai dacryocystitis .methods 286 patients (326 eyes) with neonatai dacryocystitis underwent combined modality therapy with massotherapy, pressure irrigation and probing of lacrimal passage.

目的:探讨婴幼儿泪囊炎的综合治疗及护理体会。方法:对286例(326眼)婴幼儿泪囊炎患儿采用了泪囊区挤压按摩、泪道加压冲洗、泪道探通术三步法综合治疗并于各环节给予相应护理。

To investigate the ability of ADA isozyme expression to discriminatebetweem lymphoid and nonlymphoid cell types in acute leukemia,the gelfiltration with FPLC system was used as micromethod for ADA isozymeanalysis.

为进一步阐明白血病细胞ADA同工酶生化性质,探讨制备ADA同工酶抗体的可能性,我们采用分子筛FPLC和阴离子交换FPLC系统二步法分离纯化健康人血清、单个核细胞和急性粒单核细胞白血病细胞ADA同工酶,获得部分纯化ADA1和ADA2,ADA1纯化71.62倍,活力62.2u/mg pr,ADA2纯化37倍,活力42.8u/mg pr,ADA总回收率44%,2步FPLC层析法酶活力回收率分别为68.4%和81.5%。

Hindered amine light stabilizer of Cyasorb UV-3346 was synthesized in total yield of 60% by three steps from cyanuric chloride,morpholine and N,N′-bis-(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine as starting materials.

以三聚氯氰、吗啉和N,N′-二(2,2,6,6-四甲基-4-哌啶基)-1,6-己二胺为原料用3步法合成得到受阻胺类光稳定剂Cyasorb UV-3346,总收率为60%。

A new nonlinear multistep method is constructed based on the implicit Euler method in this chapter, named Schur product multistep method.

本文在隐式Euler方法的基础上构造了一种非线性多步法,即Schur积多步方法。

A non-stiff transformation method is presented in this paper, based on the above theory, general Schur product multistep method is put forward.

本文讨论了刚性常微方程的非刚性转化方法,在此基础上,获得一类广义Schur积多步法(通过这种非刚性转化方式,显式Euler方法将成为一个A-稳定的方法)。

The properties of the general linear multistep method for piecewise smooth dynamics of mechanical systems are analyzed and a picewise smooth vibration model is introduced. Some numerical experiments on the vibration model are made and several improved integration methods are presented.

采用Taylor级数展开方法,分析了常用的线性多步法在非光滑机械动力系统中的计算精度特性,建立了一个非光滑的机械振动系统检验模型,给出了典型的计算实例,并提出了几种改善计算精度的措施。

It is proved that if the RungeKutta method and the linear multistep method are of order p, then the numerical Hopf bifurcation value is an approximation to the Hopf bifurcation value of the equation itself of the same order p.

证明了如果Runge-Kutta方法和线性多步法是p阶的,那么数值Hopf分支值以相同的阶数p逼近于方程本身的Hopf分支值。

An improved Schur multistep method has been presented for controlling error severely cumulating and increasing computational accuracy.

为解决刚性问题中导函数项的"病态性"(导函数中同时含有较大参数和较小参数),本文提出了一种改进的Schur积多步法,数值实验表明,该方法能很好地抑制误差的急剧累积,与原方法相比,计算精度得到较大提高。

Multistep method is the first method applied to DAEs.Because of some reasonsin history,all algorighms for DAEs come from those for stiff ODEs,mainly thebackward difference formula.

步法是最早用于直接求解微分代数方程的方法,由于历史上的原因,长期以来使用的公式都是由刚性常微分方程的求解公式导出的,主要是向后差分公式。

A new type of wood-plastic composite was prepared by one-step extrusion of needle-shaped wood-fiber and high density polyethylene using a twin-screw/single-screw extruder system.

采用一步法连续挤出技术将杨木针状纤维与高密度聚乙烯进行熔融复合制备木塑复合材料。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。