查询词典 h.

Methods: Oncomelania hupensis was immersed in different concentrations of extracts from Sarcotesta of Ginkgo biloba by benzinum, acetic ether or absolute alcohol. Molluscidal effects were observed at 24,48,72,96 h, and compared with those of extracts from sarcotesta of Ginkgo biloba combined with arecoline.

将经石油醚、乙酸乙酯和无水乙醇提取的银杏外种皮提取物稀释成不同浓度，用浸杀法观察24，48，72，96 h的杀螺效果；并与槟榔碱水提物联合用药的杀螺效果进行比较。

The ascender of the 'l' and 'h' for example.

比如"l"和"h"的上伸部。

By regression analysis of the obtained data, a relationship has been found between the bath depth and ingot height, which can be expressed by an exponential function, h(0,Y)=A e-B/Y, where A is the asymptotic value of the exponential function (when Y→∞hmax=A), B is a shape coefficient of the curve.

通过对已得数据的回归处理，找出了熔池深度h及锭高Y间的相关规律，得到h_(0，Y)=A·e_的指数函数关系，A是指数方程的渐近线，当Y+∞时h_(max=A是曲线形状系数。A和B均为重熔电流的函数，A=f_1，B=f_2，所以，h_(0，Y)=f_3。

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。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。