特性

It is foun d that the implied volatility of Hang Seng index options is strongly mean r everting, so assuming the market efficiency hypothesis and Black Scholes mod el are right, the implied volatility on a larger maturity option should move by less than the change of the implied volatility on a shorter maturity option.

实证分析表明期权的隐含波动率具有很强的&中心回复&特性，那么，在有效市场假设和Black Scholes期权定价模型正确性的前提之下，当一个期限较短的期权的隐含波动率发生变动时，另一个其他方面与之完全相同，但期限较长的期权，其隐含波动率的变动幅度应小于前一个期权隐含波动率的变动幅度。

Object hypostases of geospatial metadata are anatomized. Geospatial metadata is understood and described with the object-oriented idea, and its organization and management mode based on the object-oriented method is presented. It overcomes shortcomings of existing modes.

剖析了地理空间元数据的&对象&特性，然后以面向对象的思想对地理空间元数据重新加以认识和描述，提出了基于面向对象方法的地理空间元数据组织和管理模式，克服了已有模式的不足。

Secondly, based on the analysis of SMC theory, characteristics, the causes of chattering and decreased methods, a general sliding mode controller is adopted to the speed control of PMSM in this paper.

接着通过对滑模变结构控制原理、特性、抖振产生原因及削弱方法的分析，给出了一种用于交流永磁同步电机速度控制的常规滑模控制器。

The result indicated that frequency of fish-shaped cable truss support system would decrease, resulting in increase of temperature.

算例表明，预应力鱼腹式索桁架支承体系固有频率随着温度的升高而减小，具有较强的非线性，其自振频率随着振幅发生变化，其非线性振动呈现&硬弹簧&特性，非线性自振频率高于线性振动频率。

Multiveined glumes, 3 lodicules, and a linear hilum are all Stipoid characteristics.

它属于一属的小的组， Multiveined颖片，3鳞被，和一线的种脐全部是Stipoid 特性。

Micrographics; reader- printers for transparent microforms; characteristics

缩微摄影技术。透明缩微品用阅读复印机。特性

So a research upsurge for sponge spicules on micro-structure, characteristics, growth mechanism and mediation are quickly arising.

近年科学家发现了海绵骨针的光纤特性，特别是指出了这些特性可能引导人类开发新的光纤制造方法，从而引发了对其微结构、特性、生长机制与调控的生物学、生矿物学和仿生学的研究热潮。

Through studying the structure, the characteristic, the growth mechanism and mediation in sponge spicules, scientists are learning a new biotechnological route to produce electronic and optical nanomaterials in an environmentally benign way.

近年来，人们发现了硅质海绵骨针独特的微结构及良好的光纤特性，特别是指出了这些特性给人类带来制造光纤的新思路，并很快引起了科学家对其结构、特性、生长机制与调控的生物学、生矿物学和仿生学的广泛研究兴趣。

The channel currents appear quantal in nature, transiting in a seemingly random manner between the"open"and the "closed", and have the characteristic of"all"or"none".

单通道电流信号具有&定量&特性，表现出&全有&和&全无&的特征，为一个个电流幅值高度恒定，持续时间宽度随机变化的矩形波，类似于随机电报信号。

ROTARY PLATE PRINTER EXPOSURE MACHINE SUITS FOR MORE QUANTITY JOB BUTHAVE TO FINISH IN A SHORT TIME PERIOD...

特性 Features ■高速双面晒版机，是针对工作稳定、产量大且集中于短时间工作者而设计。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。