查询词典 differential calculus

The paper has used concise methods of logical analysis and reasoning to describe the relation between the first-order quasilinear partial differential equation and its system of characteristic equation.

对一阶拟线性偏微分方程与其特征方程组的关系，文中给出了简洁的逻辑分析和推导方法。

Four repeatably differential expression fragments were reclaimed from the polyacrylamide gels, re-amplified, cloned and sequenced.

获得5对能够扩增出5条对小麦抗叶锈病近等基因系TcLr41具有特异性条带的引物，分别是P-AC/M-CAA、P-AG/M-CAT、P-AG/M-CCC、P-CC/M-CCA、P-GA/M-CAA。

The morphological structure of cured vinyl-ester resin and the formation of two-phase structures in vinyl-ester resin has been studied by using SEM and differential scanning calorimetry.The results demonstrated the existence of clusters of gel-particles with a size of about 20 μ m,each cluster of gel-particles containing many gel-particles with coral-like structures.The formation of gel-particles resulted in two-phase structure characterized by the two peaks in the rescanned DSC thermographs of the resin. The cure conditions (temperatures,post-cure) affected microstructure in the cured resins.

采用SEM、DSC研究了乙烯基酯树脂固化过程中凝胶粒子的形成过程及两相结构对固化放热的影响，结果表明，凝胶粒子在固化树脂中呈群状分布，每群凝胶粒子的最大尺寸为20μ m左右，每群凝胶粒子由许多独立凝胶粒子组成；凝胶粒子的形成使树脂产生了两相结构，使树脂的恒温DSC残余放热呈双峰分布；树脂的固化条件影响其微观结构。

Finally, we show that ribosomal protein paralogs exhibit differential requirements for assembly and localization.

最后，我们证明旁系同源核糖体蛋白显示出不同的装配和定位功能。

The differential scanning calorimetry and thermal gravimetric analysis exhibited that the transition temperature and the temperature at which 5% mass loss occurred of PI-19 were 256 ℃ and 380 ℃, respectively.

示差扫描量热和热失重分析结果显示，PI-19的玻璃化转变温度为256 ℃，在5%的热失重温度为380 ℃，表明具有非常好的热稳定性。

For the quality of ferroalloy, a series of ferroalloys have been researched by differential thermal analysis and thermal gravimetric analysis .

利用差热技术对不同的铁合金产品进行差热分析，结果表明，不同的铁合金产品具有不同的差热曲线，而且对于同种铁合金，易粉化的与不粉化的铁合金产品的差热曲线也不相同，这就为铁合金的质量评价提供了一种新方法。

The obtained fiber was characterized by differential thermal gravimetric analysis, IR spectrometry, X-ray diffraction analysis and scanning electron microscopy.

对所制备纤维分别采用差热－热重分析、红外光谱、X射线衍射、扫描电镜等手段进行了表征。

The thermal stability and thermal reversible character of the network polymer were confirmed through thermal gravimetric analysis and differential scanning calorimeter.

此外DA交联型聚合物，不需要引入额外的助交联剂，克服了传统热交联聚合物分离难的问题，最大程度的保证了材料的纯度。

Purpose To evaluate the diagnostic and differential diagnostic value of 99mTc-MDP scintigraphy in breast cancer.

目的 评价99mTc-羟基亚甲基二膦酸乳腺显像对乳腺癌的诊断价值。

Fluorescence spectrophotometers, differential refractometers, electrochemical detectors, mass spectrometers, light scattering detectors, radioactivity detectors or other special detectors may also be used.

荧光分光光度计，差示折射仪，电化检测器，质谱光度计，光扫描检测器，放射强度检测器或其它专门的仪器也可以使用。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。