Toshiba was first to mass-produce laptops. Sharp—which got its name from inventing the mechanical pencil in 1915—pioneered solar cells and LCD screens.
索尼公司发明了晶体管收音机和随身听，东芝是第一个大量生产笔记本电脑的公司，因为在1915年发明了机械铅笔而得名的夏普公司首创了太阳能电池和液晶显示屏。
The physical and mechanical interaction of groundwater soil rock mass in karst collapse evolution is discussed elaborately and a coupling mode is established and studied.
分析了岩溶塌陷演化过程中物理力学上的水土岩相互作用，并对作用模式进行了探讨。
Helical spring mass system (HSMS) is widely used in almost all of mechanical and electrical products due to its structure feature and elastic buffer ability.
螺旋弹簧质量系统由于其结构特点及其缓冲作用在几乎所有机电设备和系统中都有广泛的应用。
The shearing induced plastic behaviour of a joint has certain impact on the mechanical response of the joint and on the jointed rock mass.
特别是剪切引起的节理面塑性性能对节理乃至整个岩体的力学反应都会有一定的影响。
On the basis of analysis of previous mechanical models, a multi degree model with a distributed mass is established.
在分析研究现在常用力学模型的基础上，建立了多自由度分布质量模型。
The mass loss of ablative material caused by physical, chemical and mechanical factors under high temperature affects properties of the material.
烧蚀材料在高温环境中因物理、化学和力学因素造成质量损失，影响其性能。
In this paper, variable mass controllable mechanical systems are investigated.
本文研究一类变质量可控力学系统。
Addition of mass m ACTS on the simple mechanical model of the muscle and muscular spindle.
在肌肉和肌梭的简单机械模型中增加质量m的因素。
Based on the forming methods of surfaces in the mechanical elements, the paper studies the patterns of motion in mass-reducing processes of solid materials.
基于构成机械零件的几何表面形成方法的论述，具体分析了固体材料质量减少成形工艺的运动方式。
Two basic problems, which are change of mechanical properties of swelling rock by effects of water content and the humidity field swelling rock mass, are discussed.
重点讨论了建立湿度应力场理论的两大要素：膨胀岩石含水率变化对其力学性质的影响和岩体中湿度变化规律。
The conservation law of mechanical energy in variable mass mechanical systems with ideal bilateral holonomic constraints is studied.
研究具有双面理想完整约束的变质量力学系统的机械能守恒律。
Differing from electrical system, the structural diagrams of mechanical system need the change of series combinations of mass elements into parallel combinations, which is very simple.
与电系统稍有不同的是，这种方法需将机械系统结构图作适当的改形。改形也很简单，只要将串联形式的质量元件改为并联即可。
The reasonable confirmation of rock mass mechanical parameter is a fundamental job in rock slope mechanics and engineering.
岩体力学参数的合理确定是岩石边坡工程中一项基础的工作。
The mechanical model of the U type Corolis mass flowmeter was designed, and the method to calculate its Sensitive Character was studied. The effect of restraint condition was also discussed.
建立了U型科氏质量流量计的力学模型，研究了其灵敏度系数的计算方法，讨论了约束的影响。
Anisotropy is one of the important problems in rock project, which controls generally all mechanical and hydraulic behaviors in rock mass.
岩体各向异性是岩石工程所面临的重要问题，是一切岩体力学及岩体水力学行为特性的主要控制因子。
The mechanical properties of the sedimentary rock mass structures depend on the lithological characteristics of rock and different types of structure planes.
沉积岩体结构的力学特征是由沉积岩石的岩性和岩体中各种类型结构面所决定。
The oil resistance and mechanical properties of NBR/PVC blends were improved with the increase of mass fraction of acrylonitrile of NBR.
结果表明，随着NBR中结合丙烯腈质量分数的增加，NBR/PVC共混胶的耐油性能明显增强，力学性能也相应有所改善；
The spatial variability in permeability plays an important role in the coupled hydro-mechanical processes of the fractured rock mass and induces a discontinuous distribution of principal stresses.
渗透系数的空间变异性使得隧道开挖后围岩应力有明显的非连续性，对裂隙介质的耦合过程起着重要作用。
There is essential difference between the mechanical condition of unloading engineering rock mass and loading engineering rock mass.
卸荷状态工程岩体的力学条件与传统的加载岩体有本质的区别。
The mechanical condition of unloading engineering rock mass is essentially different from traditional loading rock mass.
卸荷状态工程岩体的力学条件与传统的加载岩体有本质的区别。
In the simulation of the process of underground mining, mechanical properties and structural features of rock mass are considered.
模拟考虑了岩体力学特性及岩体结构特征，并模拟了井采过程。
The rock mass structural parameter concept consisting of the geometric and mechanical characteristic parameters being posed and the structural parameter values of rock mass at this site are presented.
文中提出了由岩体结构几何特征参数和力学特性参数所构成的岩体结构参数概念，并提供了三峡工程坝基岩体结构参数值。
First, according to the results of tests in laboratory and evaluation of rock mechanical parameters, slope rock mass failure angles are calculated based on Mohr Coulomb criteria; Secon.
首先根据室内测试和岩体力学参数估算结果，运用摩尔-库仑破坏准则计算边坡岩体的破裂角；其次，运用弹塑性有限元数值模拟方法进行了变形破坏规律研。
Because rock mass possesses heterogeneity, discontinuity and rheology property, there exists some problems on the choice of rock mass mechanical parameter of layer rock mass slope engineering.
由于岩体具有不均匀性、不连续性和随时间变化的特性，目前在层状岩体边坡工程的岩体力学参数选取方面仍然存在一些问题。
The mechanical properties of columnar jointed rock mass, which is the main composition of dam foundation and surrounding rock of deep cavern at Baihetan hydropower station, are very complex.
白鹤滩水电站坝基基岩及深部洞室围岩以柱状节理岩体为主，其力学特性极其复杂。
If there is a bulk mixing of the layers of gas in the tube by mechanical stirring or because of a density gradient, mass transfer occurs primarily by the mechanism of forced or natural convection.
如果是受到机械式的搅拌或者是密度梯度发生了变化而使得管中有大量的分层的气体，那么传递就主要通过强制对流或自然对流而发生。
The mechanical behavior of rock mass under unloading is different from that of rock mass under loading.
裂隙岩体在加载和卸荷条件下的力学特性有显著的区别。
On the basis of study on varing-mass mechanical model of human body system, the varing-mass block-body dynamics of human body system are developed to study.
在人体系统变质量力学模型研究基础上，开展了人体系统变质量块体动力学研究。
The mechanical behaviour and properties of a rock mass are obviously determined by its structure, lithology and its occurrence, and especially by the ground stress.
岩体的力学作用和力学性质明显地受岩体结构、岩性及岩体赋存条件，特别是地应力控制着。
A local transmitting boundary is combined with a lumped-mass finite element technique to form a mechanical model simulating the near field steady wave motion.
本文将局部透射边界和集中质量有限元技术结合起来形成一个模拟稳态近场波动的力学模型。
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