查询词典 H-hour

Under some regular conditions, we propose estimating equations for H,β and θ, and computational algorithm for solving the equations. We prove that the estimators are asymptotically normally distributed.

进而我们提出了估计H、β和θ的一套估计方程，给出了求解这些方程的计算机算法，讨论了估计量的极限性质，证明了估计量是渐近正态的，并且其极限协方差阵可以被相合地估计。

The obtained controller enables the closed-loop systems to be stable asymptotically and to achieve the given H performance.

所获得的控制器使闭环系统渐近稳定，并达到了给定的H性能指标。

Using tools in nonlinear H∞-control theory, it is shown that under mild conditions, the resulting closed loop system is locally asymptotically stable.

利用非线性H∞-控制一个基本结果证明了在较弱的条件下，所得到的闭环系统是局部渐近稳定的。

Shanghai listed A shares trade at a premium of some 55 per cent over H shares in Hong Kong.

在上海上市的A股，其价格比香港的H股高出大约55%。

With single strength window charge proportional counter and special light path system, the detectability reaches 10pprn. Automatic C/H ratio modification is applicable to various samples; a result can be got in 15 seconds at the soonest.

不含同位素放射源；采用薄窗充气正比计数管和特殊的光路系统，使检测限达到10pprn；自动C/H比修正，适合多种样品；最快15秒给出结果；外观美观、时尚。

The model of the boom in atmospherics is constructed, and then its control law is designed with the H(subscript ∞) method.

建立了大气扰动中的伸缩套管模型，采用H方法设计了伸缩套管的控制律，并进行了仿真。

There exist negative correlations between the ionic porosity, which is a measure of atomic packing density in minerals, and Ar and H diffusion activation energies. Thus ionic porosity can be used to predict element diffusion coefficients.

孔隙度作为矿物内部离子堆积密度的一种量度，它与Ar和H的扩散活化能之间存在负的线性相关性，因而可以用于预测元素在矿物中的扩散系数。

In this study, BADH, gene encoding the key enzyme in betaine biosynthesis, which was isolated from Atriplex hortensis, and SeNHX1, a vacuole Na+/H+ anitiporter in Salicornia europhaea L., were used to transform the tobacco to improve the salt tolerance.

本研究拟用耐盐性较强植物山菠菜中的甜菜碱合成关键基因BADH和盐生植物盐角草的液泡膜Na+/H+ anitiporter基因SeNHX1对模式植物烟草进行转化，以确定其各自在耐盐性方面所起的作用。

In this mould pump , when 11/2gc , 21/5gc , 4gc and four models when the volume of flow serve as the 6-45m3/h , total lift attainability 46-487 s rice .

该型泵中，11/2gc、21/5gc、4gc、四个型号当流量为6-45m3/h时，，总扬程可达46-487米。

This, they say, in W. H. Auden's phrase, is the age of anxiety.

他们引用W。 H。奥登的话说，当今世界是一个焦虑的时代。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。