机制

The effect of the tool composition on the friction and wear behavior was investigated,and the morphologies of the rake face and rear face of the tool cutting the steel in air and nitrogen were observed on a scanning electron microscope. It was found that the Al_2O_3/TiB_2 tool was dominated by adhesive and abrasive wear in low speed dry cutting; while in high speed dry cutting,the tool was characterized by oxidation wear. An oxide layer of TiO_2 was formed by way of the oxidation of the reinforcing agent TiB_2 at a very much high cutting temperature, which contributed to greatly reducing the friction coefficient and increasing the antiwear life of the tool.Such a friction-reducing and antiwear behavior of the oxide layer was enhanced with increasing content of TiB_2 in the tool composite. However,the tool showed a relatively poorer wear resistance in N_2 than in air, because N_2 acted to retard the oxidation of the TiB_2 and the formation of the oxide layer on the tool rake face.

结果表明：低速干切削时，Al2O3/TiB2陶瓷刀具的磨损机制主要表现为粘着磨损和磨料磨损；而在高速干切削时，刀具的磨损机制主要表现为氧化磨损，刀具表面经由氧化反应生成具有润滑作用的反应膜而起到固体润滑作用，从而使刀具的耐磨性能提高，随着TiB2含量和切削速度的增加，反应膜的减摩抗磨作用增强；而在切削区通入氮气时，由于刀具表面氧化膜形成受阻，刀具的抗磨能力有所降低。

Gandy Ink companies with their own Sportsman business card printing and membership card-making mechanism cards and membership cards making white shirt or other only needed a way to live Flash effect, but use the Gauntlets so large business card printing and membership card-making mechanism making cards and membership cards require a variety of live Flash effects.

Gandy Ink公司一般用自己的Sportsman 制卡和会员卡制作机制卡和会员卡制作白色衬衫或其他只需要一种闪光效果的活件，而用Gauntlets这样大型的制卡和会员卡制作机制卡和会员卡制作需要多种闪光效果的活件。

Sexual differentiation of gonads is sensitive to temperature during thermosensitive period.

TSD机制在生理水平的作用机制主要受到性腺类固醇激素的控制，温度通过影响芳香化酶和5α-还原酶的活性控制雌、雄激素转化，进而决定了个体的性别分化。

At a certain range, habitat loss and its spatial structure can benefit the control of the epidemic disease, which indicates the possibility of using human disturbance in habitat as a potential epidemic-control method in conservation.(6) Not only the quantity of habitat loss but also the spatial correlations of patch types caused by nonrandom habitat loss affect the invasion and transmission of disease. More fragmented landscape (high amount of habitat loss, low clustering of lost patches) hinders the parasitic infection, which also indicates that whether the spatial heterogeneity benefits or hinders the invasion is dependent on the considered ecological process.(7) Two components of the spatial heterogeneity (the amount and spatial autocorrelation of the lost habitat) form a trade-off in determining the host-parasite dynamics.(8) Within a certain range of habitat loss, host can counterbalance the positive and negative effects, and shows a rising tendency.(9) The epidemic is more likely to break out in the prey-predator system if only a small amount of habitat loss.(10) A highly aggregated distribution of species is a common behavioral strategy when dealing with habitat loss or other environmental stresses.(11) The parasite-host/prey-predator eco-epidemiological systems have the similar mechanism with the intraguild predation systems, and the predator acts as the intraguild predation, the infected prey acts as intraguild prey, and the susceptible prey acts as shared resource.(12) Species at the highest trophic level are no longer affected the most by habitat loss, which depend not only on the biological mechanism but also on the external environmental disturbances.

随着邻体数目的增加，病毒的感染力度变得更大而且在空间上形成聚集的波形；(5)生境破坏及其空间结构在一定范围内有利于疾病的控制，这暗示人为对生境的干扰可作为疾病控制的一个潜在方法；(6)生境破坏的数量以及不同类型生境的空间分布格局都显著地影响了寄生病毒的入侵和传播，生境破碎化程度越高(高丧失斑块的数量或低聚集程度)，将越有害于病毒的入侵和传播，这暗示了空间异质性是否有益于物种的入侵依赖于所考虑的生态过程；(7)由生境破坏引起的空间异质性的两个组分之间存在负偶联关系trade-off(8在适度的生境破坏范围内，宿主种群能够平衡生境破坏带来的正负两种效应并呈现增长趋势；(9)在捕食-食饵系统中，寄生感染病毒极有可能在生境破坏量较低时爆发；(10)物种在面临生境破坏或者其它环境压力时表现出更高的聚集分布策略；(11)寄生-宿主/食饵-捕食生态传染病系统与共位捕食食物网结构具有相似的生物机制，其中捕食者扮演共位捕食者的角色，已感染食饵作为共位食饵，易感染食饵扮作共同消耗的资源；(12)位于最高营养级水平的种群对生境破坏的响应不一定是最敏感的，这不仅依赖于内在的生物机制同时也依赖于外在的环境干扰。

In the paper the problems on haemocyte genesis and differentiation, and reaction of haemocyte during the virus invaded the shrimp are thoroughly studied. The research was helpful to explain the questions such as crustacean immune mechanism, the relation between circulating haemocyte and hematopoietic cell, the molecular mechanism of WSSV infection, and find effective methods for curing the disease etc.

深入研究血细胞的起源分化，以及血细胞在病毒入侵过程中的反应和变化，对于进一步阐明甲壳动物的免疫机制、循环血细胞和造血细胞相互关系、病毒入侵的分子机制以及提出有效防治WSSV方法等问题上有着积极意义。

Do not make it a kind of half human, half-divine institution, which you may build up, but can not regulate.

不要把婚姻弄成一种半人半神的机制，一种你能建立但却不能管理的机制。

Covalent modification of histones on chromatin is a dynamic mechanism by which various nuclear processes are regulated.

染色质上组蛋白的共价修饰是一个动态的机制，多种细胞核过程通过该机制被调控。

The hypothesis of Irrigation Management Transform was that water users can have more impetus than the institution imbursed by central government and can make the management of water resource more efficient and more sustainable. But up to now there are few positive research achievements about WUAs' impacts and efficiency, especially the economic independence mechanism of WUAs. It is imperative to decide whether the development of WUAs can be succeeded in the long run.

但文献检索表明，到目前为止用水户协会的成效与影响的实证研究成果很少，尤其是用水户协会的自立机制问题，所以迫切需要通过研究来探索用水户协会发展的可持续性以及它的自立机制问题，这是决定转权改革成功与否的关键所在，而要研究这些问题首先最重要的一点就是要确认用水户协会是否可以作为我国灌溉管理改革的一个方向和选择。

Also in this chapter,aproper inter-relationship between the arbitral tribunal and the court,thearbitration commission,the arbitration association is proposed for theperfection of arbitration mechanics;improvements to the theory ofempowerment by the parties and the theory of empowerment by law areproposed for the perfection of the theory of arbitration empowerment;for the perfection of the theory of exercise of arbitral power,reinforcements are proposed to the concrete powers of the tribunal,theissue how the tribunal should exercise its discretionary powers isdiscussed,and improvements are proposed to the theory of immunity ofarbitrators in the exercise of arbitral power;for the perfection of thetheory of safeguards for arbitral impartiality,it is proposed thatsafeguarding mechanism for internal supervision should be establishedas soon as possible and strengthened;improvements to theories forcourt support and supervision of arbitral power are also suggested.

同时，本章针对仲裁机制的完善，提出了如何正确处理仲裁庭与法院、与仲裁委员会、仲裁协会等的关系；针对仲裁授权理论的完善，提出了如何完善当事人授权理论和法律授权理论；针对仲裁权行使理论的完善，提出了应如何进一步强化仲裁庭的具体权力，仲裁庭应如何行使自由裁量权，以及如何完善仲裁权行使中的仲裁员免责理论；针对对仲裁权公正性保障理论的完善，提出了应如何尽快建立并强化内部监督的保障机制，以及如何完善法院对仲裁权的支持与监督理论。

Three different mechanisms and the solvent effect of the electron transfer reaction between indol moiety and phenol moiety of the model system corresponding to the dipeptide of tryptophan and tyrosine have been studied by energy calculations.

对三种机理的理论研究探明了不同去质子化机理对电子转移的控制作用，并阐明了溶剂效应引起多步反应机制和双去质子化反应机制的合理性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。