outside. the fields, the mountains and rivers were really very nice.

building a proper quantity of whaleback-shaped soil slopes used for escaping for the earthworms during raining between ridges or in fields;

在垄间或田间地头处筑适量下雨时供蚯蚓逃生用的龟背形土坡；

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by a different way, we particularized the action of the diffeomorphism constraint ( d constraint) on the abstract wave function in the extended loop representation to the action in the loop representation.

以不同方法将微分同胚约束（D约束）对扩展圈表象抽象波函数的作用特殊化到圈表象上。

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and then we will see that in the framework of diffeomorphism group the symplectic quotient is torus bundle over the moduli space of special submanifold.

然后，我们将看到微分同胚群作用下的辛商为特殊子流形模空间上的以环面为结构群的丛。

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the extended knot states under the representation of the diffeomorphism group in all likelihood, this question can only be addressed in the context of quantum theory of gravity.

扩展的纽结量子引力态这个问题只有在完全量子引力理论中才可能真正的解决。

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firstly, we will see that in the framework of diffeomorphism group the moment map exists and similarly in the framework of symplectic group it exists too.

首先，我们将看到微分同胚群作用下矩映射存在，且具体给出。类似的，辛同构群作用下的矩映射也存在。

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a catastrophe potential function, which has the same form of swallowtail catastrophe, was obtained by dimensional normalization and diffeomorphism.

基于能量平衡方程建立了热烟气层轰燃模型，经量纲归一化和微分同胚变换，得到属于燕尾突变的势函数。

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some nonlinear systems can be transformed into special triangular configuration systems by a diffeomorphism and a feedback transformation under certain conditions.

某些非线性系统在一定条件下可以通过微分同胚与状态反馈变换为具有三角形结构的系统。

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firstly, in different environment of relative degree, the design problem of the observer was proposed by means of diffeomorphism transformation.

首先，利用微分同胚变换，提出了该类系统相对阶满足不同条件时的观测器设计问题。

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by using diffeomorphism containing estimated parameters, we propose a new nonlinear adaptive control strategy for non-parameter-pure-feedback systems.

通过引入含估计参数的微分同胚变换，给出了一种非参数纯反馈系统的自适应控制，并对I.Kanellakopoulous等提出的参数纯反馈系统的自适应控制作了改进，使之能抵御有界匹配外扰。

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we investigate a class of non-hyperbolic diffeomorphism defined on the product space.

我们考虑一类定义在乘积空间上的非双曲微分同胚，借助Pesin理论以及一致双曲动力系统的基本理论，研究了此类系统的遍历论。

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linearization and simultaneous decoupling for nonlinear system based on diffeomorphism

基于微分同胚的非线性系统解耦线性化

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calculation and analysis on the shielding of protective door of the room of medical accelerator

医用加速器治疗室防护门的屏蔽估算与分析

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discussion on flat-opening safe protective door

谈平开式安全防护门

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protective door damaged by air shock wave and fragment arisen from explosion in prototype tunnel

防护门在空气冲击波和破片作用下的破坏

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study on the pressure of chemical shock waves upon the protective door in long tunnels

长坑道中防护门上的化爆冲击波压力研究

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the modal analysis of certain reinforce concrete protective door using finite element method

钢包砼拱形防护门有限元模态分析

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teeth-like crusher can crush treated or untreated pulp. adopt insulative cover and safety-protective door.

齿片式粉粹机，可粉碎处理和未处理浆。配隔音罩、安全防护门。

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protective door is located in a place near the work area, located only a protective closed doors.

防护门设在接近工作区的地方，只设一道防护密闭门。

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we think that there is little possibility of occurrence of strong earthquakes ( 7) and put forward that the flexural scarp of fault and nappe wedge are inherent in dip slip faults and they can be considered as a diagnostics of dip slip seismic fault.

本文首次提出断层挠曲崖和推覆楔是倾滑型地震断层所特有的，可作为倾滑型地震的鉴别标志。

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on layer slip, dip slip and strike slip fault systems

论层滑、倾滑和走滑断裂系统

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