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However, there is no report reported about TWP's influence on capability of muscle contraction and also still lack of objective parameter about TWP's effect on MG. So this experiment aims at studying th e effects and mechanism of TWP on capability of muscle contraction and compound muscle action potential, so as to understand TWP's influence and mechanism on muscle contraction more and establish a method and a kind of objective evidence for clinical treament on MG.

因此，本实验的目的是深入探讨TWP的药理作用，及其可能的作用机制，为反映TWP的药效提供一个客观方法和客观依据，并为临床应用TWP治疗MG提供直接的实验和理论基础。

Then came the new WPA mechanism, but the fate of this mechanism and the WEP is almost the same, last year it was two by two researchers Martin Beck and Erik Tews to break.

随后又有了新的WPA机制，不过这套机制的命运也和WEP相差无几，去年又被两名两位研究者 Martin Beck和Erik Tews给破掉了。

This dissertation is based on the analysis of defining to agricultural leading enterprises, characteristics and the necessity and backgrounds of Leading enterprises"development, and give a overall and systematic description and analysis to the current situation of Guangxi"s Leading enterprise, and further point out their existing questions: At first the leading enterprise is not only small hi quantity, poor in quality, but also repeated construction is serious; Secondly leading enterprises are defined unclearly, whose fund is insufficient and operating mechanism lag behind, at the same time their tersest mechanism is imperfect either.

本文在对农业龙头企业的界定、特征以及发展龙头企业的背景和必要性进行分析的基础上，对广西农业龙头企业现状进行了较为全面和系统的描述和剖析，并指出其存在的问题：首先龙头企业不仅数量少、质量差，而且重复建设严重；其次龙头企业界定不清，资金不足且经营机制落后，利益机制也不完善等。

This paper has made systematic research about characteristics of soil water dynamic changes, water deficit of the root-zone of pear-jujube tree with regulated deficit irrigation, physiological control in the process of the water use and the stomal response mechanism of pear-jujube tree under the water deficit environment, and the effects of different deficit irrigation levels at different growth stages vegetative growth and repproductive growth of pear-jujube trees, and also its regulation mechanism.

针对西北半干旱区果业生产面临水资源紧缺的现实，论文以该区特色经济果树梨枣树为研究对象，在西北农林科技大学旱区农业水土工程教育部重点实验室、陕西省大荔县城关镇梨枣园分别开展了温室与大田试验，对调亏灌溉的梨枣树根区土壤水分动态变化特征、水分亏缺与复水环境下梨枣树用水过程、生理调控与气孔响应机理、不同生育期不同水平亏水处理对营养生长与生殖生长的影响及其调控机制等进行了较系统的研究，分析了各生育期不同亏水处理对梨枣耗水规律、产量、品质、作物系数、水分利用效率及经济效益的影响，取得了以下成果：⑴通过亏水处理与复。。。

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。

In order to raise the anti-corrosion ability of melting aluminum pot, the TGT-4 composite ceramic protecting coat is used to protect iron pot in the aluminum alloy melting in different factory which use induce furnace, oil-burning furnace, or electric resistance furnace to melt aluminum. The advanced protecting characteristic and long-effect mechanism of TGT-4 coat are analyzed and investigated. A model of iron pot cracking mechanism and related countermeasures are proposed for factory consulting.

为了提高熔铝铁埚的抗铝液腐蚀能力，在不同厂家的工频炉、油炉、电阻炉熔铝中，用TGT-4复合陶瓷防护涂料进行铁埚防护，对TGT-4涂料的优良防护性能及长效作用机制进行了分析研究；对生产中提出的一直困扰熔铝界的铁埚开裂问题进行了调研与分析，提出了铁埚开裂机制的模型和预防对策，供生产厂家参考应用。

The energy change and mechanism of 〓,〓,and 〓 sorbed on goethite were also studied with microcalorimetryfirstly,so as to confirm the difference of mechanism of anion and heavy metalcation sorbed on soil colloids and clay minerals.

与此同时，首次应用微量热法对针铁矿表面吸附〓磷酸根离子反应中的热量变化进行了探讨，以揭示重金属阳离子和阴离子在土壤胶体与粘粒矿物表面吸附反应的机制。

This paper mainly introduces the development of Raschel lace machine in three aspects:stitch-forming mechanism, shogging mechanism and the combination of multi-bar warp-knitting technology with jacquard warp knitting technology.

文章主要从成圈机构、梳栉横移机构、多梳与贾卡经编技术的复合等3个方面对拉舍尔花边机的结构与原理进行了讨论。

This paper treats the mechanism and application of piano pedal in four aspects: the history、the construction mechanism、the sorts and the application of piano pedal.

文章通过对钢琴踏板的历史、钢琴踏板的构造原理、钢琴踏板的种类、钢琴踏板的运用这几大方面对钢琴踏板的原理与运用进行论述。

The structure, cutting-RNA mechanism and mechanism of action to HIV-1 were introduced in this paper, especially the progress of the studies of the ribozymes acting on HIV in recent years and the foreground in curing AIDS.

因此，较其它基因疗法如RNAi、DNAdecoy等，更能有效地抑制HIV复制，并且对由HIV变异而导致的耐药病毒株同样有效，同时对病毒突变的诱导作用也较其它抗病毒药物低。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。