有四种

Lastly,she bring forword a ragged contrapose writing technique that have methodology meaning and apocalypse.

四是参差对照的写法：她提出一种&参差的对照&的写法，认为这样写是更真实的。她所提出的&参差的对照&有方法论的意义和启示。

Aeruginosa and S. quadricauda in HAC were lager than in HA without reference to pure or mixed culter. It indicated that the growth of M. aeruginosa and S. quadricauda need HCO3(superscript -) as carbon source to balance its C:N:P ratio. Cyclotella sp. could not survive in HAC. M. aeruginosa and S.

铜绿微囊藻与四尾栅藻在HAC中纯培养和共培养的生物量K和最大增长速率r均远大于在HA中，表明这两种藻的增殖需要HCO3作为碳源平衡胞内营养平衡；小环藻不能在有HCO3的培养基中生存。

A composition in regularly accented,usually duple meter that is appropriate to accompany marching .

进行曲一种有规则节拍适于作行军伴奏的音乐，通常为两拍节奏完全按四音步句的抑扬格在行进。

The study results showed that Pomacentridae and Labridae are the two most dominant families and the Pomacentrus coelestis is the most abundant species during day time. Species composition of coral reef fish assemblages at the four stations changed more or less each year. The Sorensen similarity values of the four stations fluctuated between 60-75%, fluctuation is mainly due to the changes in rare species.

其结果目前已知雀鲷科与隆头鱼科为此海域的优势鱼科，白天优势种则为变色雀鲷，4个测站都观察到每年鱼种的组成均略有改变，四测站Sorensen相似度约在60%~75%之间，差异主要来自稀有种。

Any of numerous reptiles of the suborder Sauria or Lacertilia, characteristically having a scaly elongated body, movable eyelids, four legs, and a tapering tail.

蜥蜴一种属于蜥蜴类目的爬行动物，特征是有带鳞狭长的身体、可移动的眼睑、四条腿和渐细的尾巴

To solve the problem of channel with distortions, an adaptive circuit is configured by a new laddered method based on relevant articles, and simulation study was made on four dimensional Chua's chaos oscillator. The simulation results demonstrated that: synchronization of two chaotic oscillators can be achieved when adaptive circuit has adaptive capability. Synchronization of two chaotic oscillators cannot be achieved when adaptive circuit has no adaptive capability. Simulation studies were done for five scroll chaotic oscillators that achieve bond-orbit, coupling and pulse synchronization.

为了解决信道畸变问题，根据相关文献提出的梯度法，本文构造了一种自适应同步电路，并以四阶变型蔡氏混沌振荡电路为例进行仿真研究，仿真结果表明：当自适应同步电路具有自适应效应时能实现有噪声干扰情况下的两个混沌振荡电路的同步；若自适应同步电路没有自适应效应时，则不能使两个混沌振荡电路同步；以5涡卷混沌振荡电路为例用键波同步法、耦合同步法、脉冲同步法进行同步仿真研究。

Autosomal dominant polycystic kidney disease , one of the most common monogenetic human disorders, is characterized by the formation and progressive expansion of multiple cystic lesions, which compromise the function of normal renal parenchyma and lead to nearly 10％ of cases of end-stage renal failure in adults.

中文题名角质细胞生长因子在ADPKD肾囊肿组织中的表达及对囊肿衬里上皮细胞增殖作用的研究副题名外文题名 Expression of keratinocyte growth factor in ADPKD cystic tissue and effect of proliferation on ADPKD cyst-lining epitheliar cells 论文作者刘沙勤导师梅长林朱有华教授学科专业内科学研究领域\研究方向学位级别博士学位授予单位第二军医大学学位授予日期2002 论文页码总数104页关键词角质细胞生长因子肾病囊肿衬里上皮细胞株肾囊肿馆藏号BSLW /2003 /R692 /1 ADPKD是人类为之付出昂贵代价的一种全身性遗传性疾病，是引起慢性肾功能衰竭的第四位病因，在临床上以肾脏满布大小不一并不断增大的囊性液泡、最终引起肾功能进行性损害为特征性的改变。

Needled pinon of southern California and northern Baja California having sometimes 3- or 4-needled showing hybridization from ''.

加州南部和北部一种五针松（有时与加州单针松的杂交品种为三针或四针）。

A modified γ-Al〓O〓 was prepared by a special precipitation method with aluminum nitrate solution containing a certain amounts of orthosilicic acid and ammonia aqueous solution. Compared with commercial γ-Al〓O〓, the modified γ-Al〓O〓 was an effecient catalyst for dehydration of tetrahydrofurfuryl alcohol to dihydropyran. The results revealed that the strong acid sites on the surface of the catalyst may play a crucial role in this reaction.

并以硝酸铝和氨水为原料，用沉淀法制备出一种高比表面和拥有较多强酸中心的γ-Al〓O〓，它在四氢糠醇开环脱水制备二氢吡喃的反应中有优良的催化活性，通过比较此γ-Al〓O〓和普通商业γ-Al〓O〓的Py-TPD图，发现强酸中心在制备二氢吡喃的反应中可能具有关键的作用。

Cis dichloroamine (4 amino 2,2,6,6 tetramethylpiperidine 1 oxyl) platinum(abbreviated to HJ5) is a novel platinum anticancer compound which has prospects for research and application.

顺 二氯一氨(4 氨基 2 ，2 ，6 ，6 四甲基哌啶 1 氧自由基)合铂(简称HJ5 )是一种有研究与应用前景的新型铂抗癌配合物。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐