查询词典 DS

Metho ds We observed the normal brachial plexus rootlet structure of 53 individuals with thin - section CT myelography during October, l996 and May, l999 and recorded the adverse reactions of contrast medium.

HTSS 对1996年10月至1999年5月，因其它疾病做颈脊髓造影CT薄层扫描的53例患者，观察C T片上臂丛神经根的结构及造影后的副作用。

In the second part of this dissertation, we focus on the RRM issues in the MC-DS-CDMA systems, including power control, code admission, and subcarrier power allocation.

在本论文的第二部份中，我们则探讨了多载波直接序列分码多重接取系统中之功率控制、码通道分配以及子载波功率分配之无线电资源管理议题。

The asymptotical properties of KdV equation and KP equation exhibit the soliton behavior when some conditions are satisfied, and in some cases the parameter matrices describing the interaction between two solutions is quite simple. Two kinds of solutions of the second coupled equations of AKNS hierarchy are provided and applied to NLS equation. A systemical way of construction of special solutions is also tried for DS equation. Most of the results on a scalar equation can often be directly generalized to some matrix equation, and the difference between the ω in scalar form and ω in matrix form lies only in the replacement of vector p, q by matrices p, q.

对KdV方程和KP方程渐近性质的讨论显现出解在一定条件下的孤子特性，从而使得一些情形下，同类解的相互作用体现在参数矩阵上变的较简单；我们给出了AKNS方程的两类不同解，并约化到NLS；对DS方程，我们从另一个方面初步探讨了形式化推导矩阵方程特解的方法；把这些有关标量ω的结果推广到ω为矩阵上往往只要把p，q变为矩阵即可，进而可以再推广到方程组上。

The seeds of rice mutants with Ac/Ds elements inserted from rice variety Dongjin were selected and the callus were induced from scutellum of mature embryo. Ca(superscript 2+) with different concn. was added into the selected optimum enrichment, differentiation and rooting medium to study the effect of Ca(superscript 2+) on proliferation, differentiation and rooting of rice callus.

方法］选用水稻品种Dongjin的Ac/Ds插入突变株系的种子，从成熟胚盾片诱导出愈伤组织，在筛选出的最适增殖、分化及生根培养基中添加不同浓度的Ca(上标 2+)，研究Ca(上标 2+)对水稻愈伤组织增殖、分化及生根的影响。

In this paper, the system model for multi-user asynchronous DS/CDMA under multi-path fading channel is presented firstly. Then the Maximum Likelihood Sequential Estimation algorithm under time-invariant channel is described in a new form which is different from Verdus work.

本文首先给出了多径异步多用户DS/CDMA系统的一种数学模型，得出了恒参信道下最大似然检测算法的一种新的表示形式。

In times like this he f in ds his complacency sicken and die in him.

每当这样的时候，他就发现他心里的满足感枯萎并逝去了。

Positive rate of anti-ds-DNA in SLE was 78%.

抗ds-DNA对SLE的阳性检出率为78%。

But in the event the DS was a smash hit and has sold more than 21m units worldwide.

但结果DS超级流行，在全世界卖出了2100万台。

The BEijing Spectrometer is an only large general purpose solenoidal detector at the BEPC, on which the physics is to study e+e- collide physics in 2-5GeV region , the emphasis is in the τ-charm physics and the topics include J/ψ physics,ψ(2S) physics, T physics, Ds physics, D physics and hadrons generation mechanism as well as the test of QCD in 2-5GeV.

经过中外科学家的共同努力，在北京谱仪上已作出了包括"τ轻子质量的精密测量"、"2-5GeV能区的R值测量"，以及在J／ψ、ψ(2S)、Ds介子等物理研究中的多项国际领先水平的重要科研成果，引起了国际高能物理界的普遍重视和广泛关注。

As Hf is added into the alloy the volume fraction of γ/γ′eutectic is increased and the temperature range between solidus and liquidus is expanded, which may maintain the effective linkage of interdendritic capillary feeding channel, thus improving the resistance of DS castings to ...

铪的加入，增加了共晶γ/γ′的体积分数，扩大了凝固范围，改善了合金凝固后期的毛细补缩通道的联系，从而减轻了热裂倾向性。随着铪含量的提高，合金的中温持久性能，特别是中温横向持久性能有所提高。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。