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Nonspecific cytotoxic cell is the evolutionary precursor of mammalian natural killer cell in teleostean fish, which was mainly separated from blood and lymphoid organ as the first barrier of defense to protect the animal against bacteria, virus and protozoa parasitism, it plays an important role in nonspecific immunity and also has a function of killing tumor cells in vitro.

自然杀伤细胞进化上的前体细胞在鱼类中被称作非特异性细胞毒性细胞,主要来源于血液和淋巴器官,是防御细菌、病毒、寄生性原生动物等入侵的第一道防线,在非特异性免疫中起重要作用,还具有体外杀伤肿瘤细胞的功能。

Chapter3, being the main part of this dissertation, converts nonconvex semidefinite programming problem to nonlinear programming problem, and proves that under transversality condition, strict complementarity condition and the sufficient optimality condition of local solutions, and are equivalent locally.

第3章是本文的主要部分,将非凸半定规划问题转化为等式约束的非线性规划问题,并证明了在局部解的充分性条件及严格互补松弛与非退化条件之下两问题的局部等价性。

As the aeolotropism development of cracks in carbonate reservoir, so far not a very good seismic reservoir crosswise prediction method application for the aeolotropism carbonate reservoir, especially in the seismic, logging joint inversion, is mainly continues to use the reservoir crosswise prediction method that suitable for the isotropic clastic rock reservoir.

由于碳酸盐岩储层裂缝发育的非均质性,到目前为止还没有一套推广应用很好的针对碳酸盐岩非均质性储层进行地震储层横向预测的方法,尤其是在地震、测井联合反演方面,主要是沿用适合于较均质的碎屑岩储层地震横向预测技术。

It expanded to 106119ha in 1973, descented to 99167ha in 1987, backed up to 112440ha, and attained the max value in history—123170ha in 1998 and descent to 109934ha again in 2001. GIS overlaying analysis shows that, the spatial change of Minqin Oasis had the different characteristics in different stage in the last 50 years: at the end of 50's to the beginning of 70%, oasis expandation Was performed by extension of origin oasis; the atrophia of oasis from the beginning from 70's to the 80's was performed by increasing of non-oasis spot pieces of inner part for oasis; the main performance of keeping on expanding of oasis from late 80's to late 90's is outside extension of Baqu oasis near the upper stream, with increased oasis area in interior of hungriness and increased area of non-cultivation in Huqu oasis in the north. From 1998 to 2001, opening up wideness in interior of hungriness continued, but hnngrinessization of oasis became worse. The oases in the Minqin Basin developed from small to large and back to small in terms of area changes, and from south to north then to south in terms of spatial changes.

绿洲分布图的GIS叠加覆盖分析表明,近50年来民勤绿洲的空间变化在不同阶段有不同的特征:50年代末至70年代初,绿洲扩展主要表现为已有绿洲的外延式扩大;70年代初至80年代后期的绿洲萎缩,主要表现为绿洲内部非绿洲斑块增加;80年代后期至90年代后期的持续扩展,主要表现为靠近上游的坝区绿洲向外围扩展和荒漠腹地绿洲面积的增加,而北部湖区绿洲弃耕面积不断扩大;98年至2001年,绿洲荒漠腹地的开荒还在继续,但湖区的绿洲荒漠化还在进一步加剧。50年来民勤绿洲的发展总体上经历了一个面积由小到大再到小,空间位置上从南而北再向南的迁移过程。

Now there are four major types of FGCs: separated structure based on Mach Zehnder interferometer, dissymmetric structure based on 100% coupler, dissymmetric structure based on 0 coupler and symmetric structure based on 100% coupler.

光纤光栅耦合器主要有4种结构:基于MZ干涉仪的分离型、基于100%耦合器的非对称型、基于0耦合器的非对称型和基于100%耦合器的对称型。

With the rise of service administration,noncoercive act gradually becomes an important means of administration.

非强制性行为是服务行政的主要手段,伴随着服务行政的兴起,非强制性行为日益成为行政的重要方式。

Stratigraphically, based on the basic theory and methodology of stratigraphy in orogenic belt and stratigraphic geology in the study area, stratigraphy in the Gangdisê collisional orogenic zone is divided into Smith stratigraphy, limited Smith stratigraphy and non-Smith stratigraphy with predominance of the limited Smith statigraphy and non-Smith statigraphy over the Smith stratigraphy.

在造山带地层系统划分上:根据造山带地层学的理论和方法以及研究区地层的分布和特点,论文把冈底斯碰撞造山带的地层系统划分为史密斯、有限史密斯和非史密斯三类不同的地层,并指出除个别地区发育有&史密斯&型地层外,研究区主要发育&有限史密斯型&和&非史密斯型&两种地层系统。

Thermal delivery out of the drills is a very complicated process, according to the difference of working condition, thermal delivery has steady state and non-steady state, considering that the subterrene is a bit, and is removing constantly, non-steady state should be taken as the main pattern.

热能在热熔器外的传递是一个非常复杂的过程,依据工况的不同有非稳态传热,也有稳态传热,但考虑到热熔器实际上是一个钻头,它要不断移动,所以非稳态传热应视为实际上的主要传热。

Brown adipose tissue is a kind of thermogenic organ of nonshivering thermogenesis in small mammals. The key element in BAT heat production is the uncoupling protein, a unique protein located in the inner membrane of BAT mitochondria.

褐色脂肪组织是小哺乳动物非颤抖性产热的主要器官,该组织具有一个独特的非偶联呼吸机制,它是由细胞线粒体内膜上的解偶联蛋白所决定的。

Chronic diseases are the chief causes of death, and injuries and toxicosis lead to the premature death of young adults in monitoring point.

慢性非传染性疾病是构成监测点居民死亡的主要原因,损伤和中毒是构成监测点青壮年&早死&的主要原因。

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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

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。