查询词典 mechanical efficiency

The transverse elasto-plastic mechanical properties of fiber bundle reinforced composites were studied by using the micro-mechanical model and finite element method.

纤维束复合材料的主要力学特征就是纤维的接触效应。首先纤维互相接触而产生相互作用，这种相互作用对宏观性能有不同程度的影响。

The transverse elasto plastic mechanical properties of fiber bundle reinforced composites were studied by using the micro mechanical model and finite element method.

利用细观力学模型和有限元法研究纤维束复合材料的横向弹塑性力学性能。

Based on the improved first order second moment theory and aimed at the problems of mechanical reliability analysis and mechanical reliability design of single designing variable, this paper put forward a kind of explicit iteration algorithm for computing the structural reliability and determining the designing parameters of structural reliability.

引言改进的一次二阶矩理论是结构可靠性分析和设计的一种实用方法[1]，具有建立结构可靠性分析和设计计算模型简单等优点，在这种方法中，Hasofer和Lind推荐的可靠度指标是定量评估机械可靠性的一种基本参数。

In chapter 2, a finite element model for the composite sandwich plates is developed, based on the Zig-Zag deformation assumption and the first order shear deformation theory, and the finite element buckling analysis governing equations for the plates under mechanical, thermal and/or thermal-mechanical mixed loads are deduced respectively. By Von-Karman nonlinear deformation relations and Total Lagrange formulation, an incremental governing equation for postbuckling analysis is established and a corresponding effective computational scheme is presented..

第二章首先建立了基于Zig-Zag截面变形假定和Mindlin一阶剪切理论的夹层板有限元分析模型，分别推导了夹层板机械力、热载和热—机械力耦合屈曲分析的有限元列式和相应的屈曲前以及屈曲临界状态的平衡方程，基于Von-Karman大挠度理论，采用增量形式的全局lagrangian法推导了复合材料夹层板增量形式的几何非线性有限元离散平衡方程，给出了一种有效的非线性平衡方程的迭代求解格式。

Individualistic the economy that affected classical economics is freethinking, view of mechanical and mechanical nature and the thought with harmonious universe and " invisible hand " control below " the market goes quiet " closely related.

个人主义影响了古典经济学的经济自由思想，机械力学自然观及宇宙和谐的思想与"看不见的手"支配下的"市场出清"密切相关。

The results show that the gabion meshes present good tensile characteristics in the event of the rupture of the meshes. The larger-diameter gabion mesh shows a better mechanical performance, and the mechanical performance of 80RE geogrid is superior to that of 70RE geogrid. The revised relationship curves between the tension per unit width and unit elongation also present elastic stage, yield stage and strength stage. The constraint deformation of reinforcement is influenced by factors such as secant modulus of materials, stress levels, and the length of reinforcement in active area and stable area.

结果表明，格宾网在发生钢丝断裂之后仍呈现出较强的抗拉性能，大直径格宾网体现出优越的力学性能；80RE土工格栅的力学性能优于70RE土工格栅；修正后的格宾网的单位宽度拉伸力与伸长率的关系曲线仍呈现弹性、屈服和强化3个阶段；在约束条件下，筋带的变形量与筋带的割线模量、应力水平、筋带在加筋体中主动区和稳定区的长度等因素有关。

The effect of glycerin on the mechanical properties of the composite were analysed with mechanical test equipments and SEM.

通过力学性能测试和SEM等分析，研究了在不同甘油含量的情况下，复合材料力学性能。

Mian colors achieving high speed single way rainbow and scrolling effect 0-100% mechanical linear dimming (tunable from full blanking to full opening effect) Mechanical linear DIMMER and 1-10 times/s high speed STROBE effect Horizontal 450°and vertical 250°scanning range, smooth scanning action and accurate orientation Precise adjustment on horizontal and vertical position Precise speed adjustment on horizontal and vertical position Pattern internal light rotating function,freely adjusting fast , low speed , clockwise and anticlockwise GOBO position adustment Automatic focusing function 3 Prism effect, prism colorwise and anticolorwise rotating Built-in over heat protection and high voltage protection 2 convection cooling-fan,optimize internal air duct way, heat elimination rapidely Compatible with DMX512 international digital singal PFC power factor compensation According to various kinds of safety standards, IP20 protect grades, The cable accords to the CE20/22 standard

PERFORMANCE TRAIT 8种主色彩，同时可作高速单向滚动效果 0-100%机械线性调光（可控制全遮光到全开光效果） 1-10次/秒超高速频闪调整效果水平540度，垂直250度扫描范围，动作平滑、流畅、定位准确水平、垂直运动位置可精确调整位置水平、垂直运动位置速度可调功能旋转图案可正反、快慢自由调节旋转图案角度可单独调整采用电子自动对焦，图案远近均清晰度可自由调整三棱镜及棱镜正、反自由旋转功能二只对流风扇致冷，内部优化风路设计，散热充分良好内置过热保护、触发高压保护接受DMX512国际标准数码信号 PFC功率因素补偿符合各种安全标准，IP20保护等级，电源线符合CE20/22标准

When high-intensity ultrasound acts on a liquid medi um, the cavitation can produce a high temperature above 5 000 K and a high press ure about 50 MPa at local sites, accompanied by a forceful impact wave and a jet with 400 km/h. The mechanical action can generate mechanical movement with high frequency whose acceleration can be 1 500 times of gravitational acceleration.

功率超声作用于液态媒质时，空化作用会在局部点产生 5 0 0 0K以上的高温和 50MPa左右的高压，并伴有强烈的冲击波和时速达 40 0km的射流，机械作用会产生高频变化的机械运动，加速度可达重力加速度的 1 50 0倍，这些独特的效应令其在化工领域中的应用越来越广泛。

Mechanical seals shall be heavy duty cartridge type double mechanical seals to have long trouble free operations.

机械密封件应是耐用的管筒式双端面机械密封，为了长久无故障的操作。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。