起作用的

So, the retention and drainage mechanism of amphoteric PAM is integrate results on which all kinds of affecting factors effect, i.

所以，两性PAM所起的助留助滤效果实际上是各种因素综合作用的结果，既有电荷中和，也有桥联作用，也有机械截留作用，不能把它们截然分开。

But the relationship of amylose and amylopectin contents to SSS and GBSS activities was different according to filling stages.

籽粒SSS和GBSS对淀粉合成的调节作用具有明显的时期特异性，SSS主要在籽粒灌浆前期起作用，而GBSS主要在籽粒灌浆后期发挥作用。

It is the fluorosilicic ion that exsits in the slurry and plays an important role in flotation, fluorosilicic ion not only reacted with Fe〓 on the surface of aegirine to form ionic compound, but also formed stable Si-F bond in Si-O etching reaction. Only ionic compound was obtained when it was attached to hematite surface according to the theories of coordination chemistry, Compared with SiF〓, Fatty acid ion preferentially acts with Fe〓 on the minerals surface, therefore, SiF〓 Can't obstruct the adsorption of collector on the surface of hematite completly, but can reduce the flotation recovery of aegirine selectively.

运用FTIR、XPS等测试方法仔细研究了氟硅酸盐抑制剂对含铁硅酸盐钠辉石的选择性抑制作用机理，氟硅酸盐在弱酸性条件下对赤铁矿浮选的抑制作用很微弱，而对含铁硅酸盐钠辉石强烈抑制，从而扩大了两者之间的浮选差异；SiF〓是矿浆中起抑制作用的主要成分，SiF〓不仅与钠辉石表面的Fe〓形成离子型配合物，而且还与Si-O键形成稳定的Si-F共价键，而与赤铁矿表面只能形成离子型配合物，根据晶体配位场理论，与SiF〓相比较羧酸根离子将优先与矿物表面Fe〓发生配位作用，因此SiF〓的存在并不能完全阻碍捕收剂在赤铁矿表面的吸附作用，却能够选择性地抑制钠辉石的上浮。

The experimental data demonstrated that there was a nasalward directional preference in oath OKN system under both close loop and open loop conditions, and the nasalward OKN gain evoked by stimulation of nasal retina was much higher than that at temporal retina. ms indicates that OKN nasalward preference is mairily derived from the nasal retina, i. e. the direct path1Vay of OKN dominates the indirect pathway in cat's OKN system. The gains of temporalward and nasalward OKN from temporal retina are much less than those of nasalward OKN from nasal retina. It is suggested that the indirect pathway of OKN in the cat only possesses a supplementary function, Which probably plays an important role in temporalward OKN eye-movments in relation to binocular vision.

实验结果显示：高速度刺激的闭环OKN反应及开环OKN反应均对鼻向运动刺激有明显的方向选择性；半侧视网膜刺激时，鼻侧半视网膜的鼻向OKN增益明显高于颞侧半视网膜的鼻向增益，说明猫的OKN眼动反应以跟踪鼻向运动为主，并且这种对鼻向运动刺激的选择性主要来源于鼻侧半视网膜，亦即来源于OKN直接通路；颞侧半视网膜的鼻、颞向眼动增益均明显低于鼻侧半视网膜的鼻向眼动增益，说明猫的OKN系统的间接通路在OKN眼动控制中起辅助作用，并可能主要对颞向OKN眼动起作用从而与双眼视觉功能相关。

The performance is examined as a comparatively complicated system engineering, a great deal of links faced in the course of implementing all need us to consider carefully, operate prudently, otherwise it is not merely difficult to examine management activity in performances implemented and play a positive promotion role in organizing the realization of the goal, will play the function that passivism hinders in organizing the realization of the goal instead.

绩效考核作为一项较为复杂的系统工程，在实施过程中面临的诸多环节都需要我们仔细斟酌、谨慎操作，否则所实施的绩效考核管理活动不仅难以对组织目标的实现起积极的推进作用，反而会对组织目标的实现起消极阻碍的作用。

For confirmation of this ancient legend and found out the sexual improvement compounds the testosterone and NO in serum of mice were measured,the weight of sexual organs of mices was detected and the sex behaviour of mice was observed.The testosterone and NO concentration in serum of mice as indicator for screening some improving sexual compounds from Chinese chives was builted.1、The preliminary experiment of Chinese chives confirm sexual improvement functionThe sexual improvement function experiments of Chinese chives comparing with herba epimedii,herba cynomorii and radices morindae which were acknowledged as chinese herbals having sexual improvement function were carried out.The result was showed that the Chinese chives was confirmed having sexual improvement function,though its efficacy was less than herba epimedii,herba cynomorii and radices morindae.

为了证实古代医学认为韭菜的壮阳功能，揭示韭菜起温肾壮阳作用的化学物质基础，开发其功能性物质成分，本实验首先应用韭菜酒精初提液对小鼠睾酮、NO含量、性器官、性行为等指标的测定，验证韭菜是否具有改善性功能作用，然后以小鼠睾酮、NO含量等为指标对韭菜中的壮阳物质进行逐步分离和改善性功能作用筛选，以鉴定出几种改善性功能的物质。1、韭菜改善性功能的验证将韭菜与淫羊藿、琐阳、巴戟天三种有温肾补养功能的中草药进行比较，发现韭菜改善性功能作用不如淫羊藿、琐阳、巴戟天壮阳中草药的效果明显，但是韭菜还是具有显著的改善性功能作用的(P＜0.001)。

After doing a lot of experiments, the paper analyses the parameters that take effects when people judge directions between two objects, and concludes that there are two factors that play important roles: one is the diameter of the convex hull of the point set of two objects; another is the visible field between two objects.

在大量实验的基础上得出结论：在两目标方向关系判断中，目标图形的各个部分所起的作用是不一样的，起主要作用的因素有两个，其一是两目标间的可视区域，其二是两目标群点凸壳的直径。

MCP could effectively delay the softening of climacteric fruit, such as Starking and Fuji apples and Feicheng peach, but as different fruits had different softening mechanism, the mechanism of 1-MCP inhibiting different fruit softening was different: in Starking apples, the key enzyme to the softening is endo-and exo-PG, while during Feicheng peach fruit softening, the key enzyme was EGase before the 20th d and endo-PG after 20th d during storage at 0℃. 1-MCP inhibited fruit softening mainly by inhibiting PG activity in Starking apple while in Feicheng peach, by inhibiting the activity of EGase in the earlier storage time and endo-PG in the latter time. It was also found that LOX accelerated the initiation of the softening and was regulated by ethylene and 1-MCP in apple and peach.

2.1-MCP能较好的延缓红星、富士和肥城桃等跃变型果实硬度的下降，但是不同品种/树种的果实软化机理不同，1-MCP抑制其软化的机理也不一致：在红星果实中，对软化起主要作用的酶一直为内切和外切两种PG，而在肥城桃软化过程中，前20d以纤维素酶活性起主要作用，20d后软化以内切PG为主。1-MCP主要通过抑制红星果实中PG酶活性来抑制果实硬度的下降；在肥城桃果实中，1-MCP通过抑制前期纤维素酶和后期内切PG活性，延缓了果实硬度的下降。

Sliding of grains boundary and interface was a main mechanism of superplastic deformation of metal matrix composite. Dislocation did major action to coordinate this two sort of slidings, in the meantime, stacking-faults and twin-crystals did asistant action.

经过对上述问题的研究，本文对金属基复合材料超塑变形的微观过程给出概括性的描述：金属基复合材料超塑变形的主要机制是晶界及界面滑动，位错对实现这两种滑动起主要的协调作用，层错与孪晶则起辅助的协调作用。

A detailed analysis of the experimental results implied that the attractive forces play a main role in the collisional quenching processes of NCO by the quenchers studied in this work, and for some quenchers, the quenching of NCO is probably controlled by the entrance-channel and might be ascribed to the contribution of chemical reactions.

对实验结果的分析表明，电子激发态NCO A〓Σ〓（00〓0）的猝灭过程可能属于多极吸引势起着重要作用的入口通道控制机制，对于大多数被研究的猝灭剂分子，化学反应在其对NCO自由基的猝灭过程中可能起着重要的作用。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。