完全相同的

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。

ABSTRACT It is because that the excellent acceptors for maize transgenic engineering are insufficient in our country, especially in the southwest mountain areas of china and hereditary variation regularity for the two characters such as efficiency of embryonic callus induction and number of regenerating plant (these two characters were abbreviated to the nduction efficiency and number of regenerating in the following of the paper, respectively), which hint the maize culturing capacity, is not very clear. Therefore, aiming at picking out superior acceptors, we had made systematic researches on the two characters with combing traditional quantitative-character genetic analyzing methods such as single-factor genetic mating design, diallel crossing genetic design, genetic effect analyzing method and the modern molecular locating method such as QTLs'. The main results are followed.(1) 50 superior inbred lines and about 30 crosses in our country, especially in the southwest of China were used for identifying and selecting the superior genotypes in the above two investigated characters under the same culturing condition in 2000 and 2001. There was very significant difference among the genotypes in the both characters. But the two characters were not certainly related. Some genotypes such as 18-599 and 18-599 were very good in them. For some ones such as zong 31, induction was higher than 18-599 and 18-599 in the efficiency, but it was only 1/3 to the later in regenerating number. In some genotypes such as S37, R08, R15, P138, A318, induction efficiency was just about 3% and scarcely any regenerating plants were got. On the whole, hybrids acted better than inbreeds in the both characters.(2) Two kind of inbreeds were selected as parents of the Griffing's method 1. 18-599 and 18-599 and the inbred line zong 31 are one kind because they are not only superior in the characters of maize cross breeding, such as CA, resistance to disease and the important agricultural characters, but also excellent in transformation characters as the induction and regeneration.

针对我国、特别是西南山地所需玉米转基因工程育种优良受体极为匮乏和反应玉米幼胚培养能力的2个主要性状，即玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数的遗传变异规律十分不清楚的实际情况，本研究从筛选玉米转基因工程所需要的优良受体入手，采用单因素遗传交配设计、双列杂交遗传交配设计、世代基因效应等传统数量性状分析方法，以及现代分子标记定位主效QTL分析方法，对玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个性状进行了较为系统的分析研究，取得以下主要研究结果：(1)于2000年和2001年通过对我国、特别是西南地区近50份优良自交系和近30个杂交组合，在相同培养条件下，对幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个幼胚培养能力性状进行了筛选与鉴定，发现玉米不同基因型具有完全不同的幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数，但幼胚培养胚性愈伤组织诱导率与胚性愈伤组织绿苗发生数并不具有必然的相关关系，有的基因型，如自交系18-599和18-599在胚性愈伤组织诱导率和愈伤组织绿苗发生数等2个性状都表现相当优异；有的基因型，如自交系综31，仅幼胚培养胚性愈伤组织诱导率性状表现高于19-599和18-599，但在胚性愈伤组织绿苗发生数这一性状则与它们有相当大的差距，仅为19-599和18-599的1/3左右；有的基因型，如S37、R08、R15、P138、A318等玉米自交系不仅幼胚培养胚性愈伤组织诱导率很低，平均仅在3％左右，而且胚性愈伤组织绿苗发生数表现也很差，基本上没有分化成苗。

Shortly before the voyage was over, he mulled over what he had seen on the Galápagos:"When I see these islands in sight of each other, and possessed of but a scanty stock of animals, tenanted by these birds, but slightly differing in structure and filling the same place in Nature, I must suspect they are only varieties … If there is the slightest foundation for these remarks the zoology of the will be well worth examining; for such facts would undermine the stability of Species."

在这次航行结束前不久，他仔细思考了在加拉帕戈斯群岛上看到景象：&那些岛屿相互毗邻，彼此可以看见，仅仅拥有少量的动物，栖息着一些结构略微不同并且在自然界中存在于相同的地方的鸟类，当我看到这些岛屿时，不由得猜想这些鸟类仅仅是一些变种……。即使这些观察有最少的基础，加拉帕戈斯群岛的生物学也将是完全值得考察的，因为这些事实将摧毁物种稳定的观念。&

The contributing law of initial surface hardness, micro hardness and its hardness gradient, metallography of bush and pin on chain wear resistance were demonstrated according to the micro analysis and the design rules under different wear mechanism were put forward.

由此可见，研究三轮农用车正时链和传动链的磨损机制，分析影响其耐磨性的因素，寻求提高其耐磨性的原理与技术，具有十分重要的学术价值和实用意义。1 磨损试验为了增强试验结果的可比性，实现不同质量水平的链条在完全相同

After presenting nearly identical front-page layouts for half a century - always six columns, with the day's top stories in the first and sixth columns,"What's News" digest in the second and third, the "A-hed" feature story in the fourth and themed weekly reports in the fifth column - the paper in 2007 decreased its broadsheet width from 15 to 12 inches while keeping the length at 22 3/4 inches, in order to save newsprint costs.

在介绍几乎完全相同头版布局半世纪-总是六栏，与当天的头条新闻中的第一和第六栏，&最新消息&月刊在第二次和第三次的& A -海德&特写在第四和主题的每周报告中的第五纵队-该文件在2007年减少了报纸宽度从15到12英寸的长度，同时保持在22 3 / 4英寸，为了节省新闻纸成本。

Several variants were built: The Model 08/33 Short Rifle, made for Brazil; the Model 12/33 Carbine, built for export to Central and South America; the Model 16/33 Carbine, the shortest member of the series and the basis for the VZ-33 Gendarmerie Carbine; the Model 32 and 35 Short Rifles, minor variants made for Peru (identical to the VZ-98/29 Short Rifle for game purposes); the VZ-98/29 Short Rifle, a shorter version of the base rifle; The Model JC Short Rifle, a lighter version of the VZ-98/29 Short Rifle built for civilian export; and the Model L Short Rifle, a version built for the Lithuanians, firing the .303 British cartridge and using a Austro-Hungarian 1895-pattern knife bayonet.

分别建有几个变种：真33分之08短步枪，对巴西，示范12/33卡宾枪，出口到中南美洲建成；示范三十三分之一十六卡宾枪，该系列最短成员和基础此外，VZ - 33宪兵卡宾枪，模型32和35短步枪，对秘鲁提出的轻微变种（完全相同VZ-98/29短步枪为比赛的目的）；的VZ-98/29短步枪，一个较短的版本基地步枪；示范Jc的短步枪，一短的VZ-98/29建民用枪打火机出口版本，以及型号L短步枪，对立陶宛建立了一个版本，射击0.303英国墨盒和使用奥匈1895纹刀刺刀。

The Automatic Control Valves ABS is ABS for short, which is based on the conventional brake system security technologies to enhance improved by controlling the brake hydraulic flaps to achieve control of the wheel locking, the braking process , only when the wheels tend to be controlled when locking, ABS will tend to locking of the wheels anti-lock brake pressure regulation; in the control wheel was not tended to locking, the braking Butterfly Valves process and the conventional system exactly the same dynamic system, the braking process, its work process is actually locking - release - Locking - release cycle of the working process, the vehicle is always in the critical state of locking of the roll gap.

而ABS是制动防抱死系统的简称，它是在常规制动装置基础上的加强改进的安全技术，通过控制刹车油压的收放，来达到对车轮抱死的控制，在制动过程中，只有当被控制车轮趋于抱死时，ABS才会对趋于抱死车轮的制动压力进行防抱死调节；在被控制车轮还没有趋于抱死时，制动过程与常规制动系统的制动过程完全相同，其工作过程实际上是抱死—松开—抱死—松开的循环工作过程，使车辆始终处于临界抱死的间隙滚动状态。

So it can keep invariable bulk phase transition within a wild neutralization range;AB-I and AB-II show the similar phenomenon in bulk phase transition,but not very similar in methanol and ethanol.Perhaps this is because of competition between hydrophile and lyophobic.

AB-I样品分子链上的磺酸基团(-SO3-)完全电离，与树脂网络外部溶液浓度差始终较为恒定，所以能在较宽的中和度范围内(40%～80%)保持较为恒定的相变体积；AB-I和AB-II在电解质溶液中表现出类似的体积相变规律，而在甲醇、乙醇中表现出不尽相同的相变规律，这可能是由于AB-II中存在亲水力和疏水力相互竞争作用的结果。

Although the replacement of print ribbon is not a very difficult thing, but different types of printing, ribbons frame the results are exactly the same installation, it is fortunate that all the ribbons of the working principle is almost the same.

尽管更换打印色带并不是一件十分困难的事情，可是打印的类型不同，色带架的安装结果也不完全相同，幸运的是所有色带的工作原理几乎是一致的。

Compared with the GPAT amino acid among squash, figleaf gourd, Arabidopsis thaliana, spinach, pea, redflow, etc., some sites of amino acid are the same in chill-resistant plants but different from squash, figleaf gourd and cucumber. These amino acids may also related to the selectivity of GPAT to different fatty acids in different plants.

比较南瓜、黑子南瓜、豌豆、红花、拟南芥菜和菠菜等植物中GPAT基因推导的氨基酸序列发现，在比较抗冷的拟南芥菜、红花、豌豆和菠菜等植物中，虽然它们之间的亲缘关系都比较远，但某些位点上的氨基酸残基却完全相同，而与南瓜等抗冷性较差的植物不同，这些位点的氨基酸残基可能也与GPAT对底物酰基的选择性有关。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。