查询词典 d'Alembert principle

Finally, the change of joint angular velocity of the supporting leg is deduced based on the Lagrange dynamic equation when a foot of the robot collides with the ground.3, Dynamic stability conditions of the robot in stance phase and flight phase are derived based on the D\'Alembert principle.

这种动力学方程由微分方程和代数约束方程组成，其优点是通过稍微修改约束方程和雅克比矩阵，就可以方便地建立各自动力学方程，建模速度快、精度高。

Aiming at bottom roof caving and support impact problems induced with abrupt large scale caving upper roof in face 21303 of Daliuta mine, this paper put forward the motion parameter at roof caving and calculation formula of roof shear breaking force with the help of theorem of momentum, theorem of moment of momentum and D' Alembert principle. Roof caving process was simulated by Ansys Ls-DYNA program, and maxim impact force was got. The theoretical research outcomes in the paper were applied in face 21303 of Daliuta mine, and were accordant with actual observing status of roof caving process.

针对神东煤炭公司大柳塔煤矿活井21303综采工作面，上层采空区顶板突然大规模垮落对下层顶板及支架的突然冲击问题，文章采用动量定理、动量矩定理、达朗伯原理推出了顶板垮落瞬间的运动量及顶板切顶垮落所需要的剪力值计算公式，用ANSYS LS-DYNA程序对顶板垮落过程进行了数值计算，得到了最大冲击力，在大柳塔煤矿活井21303综采工作面对顶板垮落特征进行了实际观测和理论成果验证。

The two-degree-freedom vibration system made of the main mass and dynamic vibration absorber in deep sea was studied. The mathematics model was built based on the principle of D'Alembert theory, and was calculated with non-dimensional equations.

以深海中附有动力吸振器的两自由度振动系统为研究对象，利用达朗伯原理建立了数学模型，并进行无量纲化运算。

Principle of d′Alembert Lagrange for a system relative to a non inertial reference frame and non isochronal variation is first presented.

本文研究了单面非完整系统相对于非惯性系的 Noether定理及逆定理。

In view of the invariance of relattvistic Pfaff-Birkhoff-D' Alembert principle under the infinitesimal transformation of groups.

基于相对论Pfaff-Birkhoff-D'Alembert原理在群的无限小变换下的变形形式，建立相对论Birkhoff系统的Noether对称性理论。

First of all, the multi-degree-of-freedom equation of motion of the rotor-bearing system, under the action of non-linear oil forces, are derived by Ritz＇ s method according to d＇ Alembert＇ s principle.

轴承系统的不平衡量，给出了一种适合参数识别的非线性油膜力表达式，并引入遗传算法来识别非线性油膜力的动力系数和不平衡的大小和位置。

Under the condition of knowing trolly"s relation datas, the wire rop-load modle taking its load as the study object, using D"Alembert"s Principle and Hybrid method, solves out the mathematical expression of wire rop"s traction while settig the hiost speed; The elctronic motor-drum modle"s build up is attracted to the elctronic motor"s torque, and combines with the wire rop traction"s role on drum, only pay attation to the coupling"s flexibility and damping, which is between the elctronic motor and the reducer. The theory of transmission equations establishment is in Project Vibration.

钢丝绳—吊重模型是在小车运行机构的相关数据均已知的情况下，以吊重为研究对象，利用达朗伯原理和动静法，在假定起升速度已知后求解出钢丝绳牵引力的表达式；电动机到卷筒部分的模型则是建立在电动机输入转矩形式已知的基础上，结合钢丝绳牵引力作用在卷筒上的工作阻力矩，只考虑电动机与减速箱之间的联轴器的弹性阻尼，利用工程振动原理建立传动方程。

In this paper,the generalized equations of variable mass for high-order nonholonomic mechanical system in noninertial frame are de- rived by the universal D Alembert s principle and an example is given to illustrate the application of these equations.

本文由万有D'Alembert 原理导出变质量高阶非完整系统相对于非惯性系的广义方程，并举例说明其应用。

Through the autocriticism of our legislation and the lucubrating of the advanced legislation of the developed country, this article rise the precautionary principle, control principle, intervention principle, in principle, and responsibility principle as the basic principles of our biosafety legislation. Then improve our biosafety legislation system under the guidance of these principles.

首先，应当制定一部《生物安全法》作为框架性的生物安全管理法律；其次，制定各领域的生物安全专项管理法律，或对原有的有关法律进行补充；再次，提出制定转基因生物环境影响和安全评价、生物技术成果越境转移管理、转基因生物标签管理等方面的法律、法规，应对目前生物安全的主要问题，并对生物技术损害法律责任的承担和纠纷处理程序立法提出建议；最后，指出其他部门立法中有关生物安全方面应当进行的修改，包括知识产权法中的基因专利方面，民法中有关基因隐私权方面，刑法中的基因犯罪方面，等等。

On the basis of formal chapters' analysis, learning from foreign countries' successful experience in circular economy's legislation, considering our own legislation practice in developing circular economy, the main framework of our country's circular economy's legal institutions' construction is put forward as follows, the guidance thought of the circular economy's legal institutions' construction is the concept of scientific development and the thought of sustainable development; the 3R principle, the principle of following the ecological rules, the principle of giving priority to precautions, the principle of the contaminator paying are the basic principles of the circular economy's legal institutions' construction; the field of the natural resources' exploitation and utilization, the field of manufacturing industry and service trades, the field of disposing waste and changing waste into resources, the field of the exploiting and utilizing energy, and the field of social consumption are the key fields of the circular economy's legal institution's construction; the circular economy's legal system is constructed from four levels, the basic laws, the principle laws, the comprehensive laws and the special laws; The following circular economy's legal institutions are made, the institution of circular economy's planning, the institution of green economy's accounting, the institution of scientific and technological information's titles, the institution of economic encouragement, the institution of market allowance, the institution of listing the names' who set good example in developing circular economy, the institution of forcing those enterprises with heavy pollution into developing circular economy, the institution of green consumption, the institution of the public's participation, the institution of sharing the responsibility, and the institution of evaluating the circular economy's results.

该部分以前面几章分析的循环经济立法理念为基础，借鉴国外循环经济立法的成功经验，结合我国的循环经济立法实际，提出了我国循环经济法制建设的基本框架是：以科学发展观和可持续发展思想为循环经济法制建设的指导思想；以"3R"原则、遵循生态规律原则、预防优先原则和污染者付费原则为循环经济法制建设的基本原则；以自然资源开发利用领域、加工制造产业与服务产业领域、废弃物处理与资源化领域、能源开发利用领域和社会消费领域为循环经济法制建设的重点领域；从根本法层面、基本法层面、综合法层面和专门法层面来构建循环经济法律体系；构建包括循环经济规划制度、绿色经济核算制度、科技信息支持制度、经济激励制度、市场准入制度、循环名录与循环示范制度、重点污染企业强制实施循环经济制度、绿色消费制度、公众参与制度、责任分担制度和循环经济绩效评价制度在内的循环经济法律制度。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。