the current situation and development orientation of track bulldozers in our country

analysis of mechanical characteristics on u-shape frame of bulldozer

推土机U型架力学特性分析

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analysis of hydraulic system of work attachment on cat series bulldozers

CAT系列推土机工作装置液压系统分析

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a new type of differential power steering mechanism in track type bulldozer

履带推土机新型动力差速转向机构

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construction of work devices on wheel bulldozer and its operation principle

轮式推土机工作装置的结构及工作原理

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a model of failure frequency of metal structure members of bulldozers

推土机金属结构件故障频数模型

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there would be one machine, one bulldozer for the entire area.

也有机械，有推土机供整个地区使用。

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analysis of influences of bulldozer transmission parameters upon engine output power

推土机变速箱传动链参数对发动机平均输出功率影响的分析

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control system of full hydraulic bulldozer based on rc electronic control unit

基于RC控制器的全液压推土机控制系统

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barely had the bulldozers started when museum of london archaeologists swooped.

推土机刚一启动，伦敦博物馆的考古学家们就蜂拥而至了。

柯林斯高阶英汉双解学习词典

on the basis of the principle of" electronically tuning fundamental frequency and extracting second harmonic", this paper proposes a circuit model for wideband series varactor tuned harmonic oscillators.

依据电调基频、提取谐波的构想，建立了串联型宽带变容管电调谐波振荡器的电路模型。

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based on dantas' work of quantum harmonic oscillator, an evolutionary problem of two coupled quantum harmonic oscillators is put forward, and the exact solution is derived by introduction of the appropriate operators and auxiliary functionals.

在Dantas等人所作量子振子工作的基础上提出了二个相互耦合的量子谐振子的演化问题，通过引进几个算符和辅助函数，求出了问题的精确解。

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based on the nonlinear of synchronized oscillators, the expression of locking range for fundamental wave injection locked 2nd harmonic gunn oscillators is derived.

本文基于同步振荡器的非线性模型，导出了基波注入锁定二次谐波耿氏振荡器的锁定带宽表达式。

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fundamental wave injection locked 2nd harmonic gunn oscillators

基波注入锁定谐波耿氏振荡器研究

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we point out that the usual quantum enveloping algebra can be realized at classical level in the sense of poisson bracket. as an example, we give the classical realization of uq ( su ( 2)) by a system of classical harmonic oscillators.

通常所谓的量子包络代数可以在经典Poisson括号的意义下实现，以谐振子系统为例，给出U q（SU（2））的这种经典实现，指出这种q变形伴随着相空间复坐标的Beltrami变形。

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from the viewpoint of wave mechanics, the interaction between the incident heat radiative wave and the damping harmonic oscillators in materials is analyzed to reveal the emission, absorption, transmission and reflection mechanism of incident heat radiative wave in materials.

从波动力学的观点出发，解析了热辐射波和材料内部的阻尼谐振子之间的相互作用过程，从而揭示了热辐射波在材料内部的发射、吸收、透射和反射机理。

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in this paper, for a system of independent harmonic oscillators in the condition of constant temperature, we give a method of resolving the operator exp (-β) by group theory to calculate the partition function z_n(β) of the system.

对于恒温条件下的独立谐振子体系，本文给出一种分解算子exp（-β）的群论方法来计算体系的配分函数Z N（β）。

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the energy eigenvalue of the common double couplings with non-identical harmonic oscillators was studied by transformation of coordinates under the effects of coupling-λ x_1x_2+ vp_1p_2.

利用坐标变换技巧，研究了两个质量和频率均不相同的玻色谐振子体系，得到了在-λx1x2+vp1p2耦合作用下能量本征值的精确解。

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based on the research on the microscopic mechanism of heat radiation of ionic crystals, a model of harmonic oscillators was established to calculate the heat radiation characteristics of ionic crystals.

从对离子晶体热辐射的微观机理的研究出发，利用谐振子模型对离子晶体的热辐射特性进行了研究与计算，利用该模型可以计算出离子晶体材料的红外光谱图。

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the expansion method of mixed basis vectors of lower-energy states and harmonic oscillators in calculation of bound states of few-body systems

少体束缚态的低能态和简谐振子混合基矢展开方法

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the energy-level gap of coordinate-momentum cross coupling harmonic oscillators

坐标-动量交叉耦合谐振子的能级间隔

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