机械冲击

经试验证明，新工艺既保证了催化剂组份抗热冲击和机械冲击能力，也具有良好的CO、HC和NOx三元净化性能。

Tests show the new process produces the thermal shock and mechanical shock resistances for catalyst components , and also better three-way conversion performance of CO , HC and NOx .

总是要保护NF3钢瓶，防止机械冲击或损伤。

Always protect NF3 cylinders from mechanical shock or abuse .

大功率LED灯体积小、重量轻，环氧树脂封装，可承受高强度机械冲击和震动，不易破碎。

High power LED Lamp is characterized by small volume , light weight , epoxy resin packaging , good impact resistance and unbreakable property .

为提高五轴非均匀有理B样条的插补精度，减轻段间转接时对机床的机械冲击，提出了一种速度前瞻控制处理方法。

To improve accuracy of5-axis Non-Uniform Rational B Spline ( NURBS ) interpolation and to cut down mechanical impact on machines during transition , a look-ahead feedrate control method was presented .

着重研究了机械冲击和应力对无铅BGA封装焊点可靠性的影响，介绍了BGA封装的可靠性力学试验（跌落、弯曲试验）及其分析方法。

The methodologies for free drop test and bending test are introduced , considering the important effect of mechanical stress on the reliability of lead-free BGA packaging .

Otomos由日本Momo公司发明。如果Otomos感受到明显的机械冲击，比如孩子发生了意外，那么它还会自动给家长的手机发送短信。

Otomos , which was created by Momo Ltd , can also send automatic messages to parents ' phones if it senses that a significant physical shock , such as an accident , has taken place .

研究结果表明：TGM剂的喷涂膜与钢铁基体结合牢固，在750℃～900℃温度范围内，具有优良的高温强度、耐热冲击性能、抗机械冲击性能和持久性能。

The test results shown that : the jetting film of TGM is adhere to steel and iron basis hard , and possessed good high temperature capability , anti-heat shock capability , anti-mechanical shock capability , and enduring capability .

同时通过改进结构设计，使最大吸力（气隙为1mm）与工作吸力（气隙为15mm）之比由40.5降到2.3，可谓准恒力电磁铁，大大减小了电磁铁工作过程中的机械冲击与噪声。

By improving the structure design , the ratio between biggest electromagnetic traction ( air-gap is 0.001m ) and working traction ( air-gap is 0.015m ) is falled from 40.5 to 2.3-magnetics of quasi-constant force , and mechanical shock and noise are reduced in electromagnetics operation .

同时又推导出了机械冲击机构的设计方法和专用公式，可供设计时使用。

The method and formula for design of percussive mechanism are derived .

严重的振动及机械冲击超过产品目录的规定范围。

Severe vibration and physical shock conditions that exceed specification .

GB/T8171-1987使用缓冲包装材料进行的产品机械冲击脆值试验方法

Test method for mechanical shock fragility rating of products-using package cushioning materials

散装搬运时应注意将摩擦及机械冲击减至最低。

Bulk handling should ensure that abrasion and mechanical shock are minimized .

灌注桩基工程机械冲击成孔施工工艺

Construction Technology of Mechanical Impact Pore-forming in the Project of Pouring Pile Foundation

产品机械冲击脆值和耐振度研究

The study of fragility and vibration resistance strenth of mechanical shock on products

洗涤中氧化作用和机械冲击对织物强度的影响

Cotton fabric strength affected by oxidation from detergent and mechanical impact during laundering

GB/T6552-1986玻璃瓶罐抗机械冲击试验方法

Standard test method for impact resistance of glass containers

机械冲击载荷下固体推进剂热点微观模型探讨

Microscale hotspot model of solid propellant under mechanical impact

GB/T7990-1987搪玻璃层耐机械冲击试验方法

Impact test method of glass-lined layer

机械冲击载荷下粘性加热对颗粒填充固体推进剂热点形成的影响

Effect of viscous heating on hot-spot formation of particulate filled propellant under the mechanical impact load

陶瓷内衬复合钢管具有良好的耐机械冲击性能。在受到一般性的机械冲击时，陶瓷层不碎、裂。

The ceramic layer does not crack or flake off when the composite pipe receives a mechanical shock .

作者提出用增量优化算法解决刀具轨迹的优化问题，目的是精简冗余刀位点，并对刀具轨迹进行光顺处理，以减小对数控机床的机械冲击。

An incremental refining algorithm is presented to reduce the cutter location points and make the tool-path more smoothly .

可动边界上热冲击和机械冲击联合作用下圆筒的动态热应力

The dynamic thermal stresses in hollow cylinder by thermal shock simultaneous with mechanical shock acting on the inner moving boundary

因此，切屑的每次折断均会给刀片造成机械冲击。

Therefore , the fracture of the chips for each time will give rise to mechanical impact for the cutters .

压电陶瓷虽然压电性能好，但硬度高，易碎，制作工艺复杂，不能承受过大的机械冲击力。

Piezoelectric ceramic although piezoelectric properties , but its hardness , brittle , making up very complex , and cannot bear too mechanical impact .

电源的切换不当将导致很大的电气和机械冲击，在电动机群的重新投入时更为严重。

Improper switching of power source will cause powerful electrical and mechanical impact , this impact will be more serious when motor cluster re-enter again .

而仪器的电气参数会随时间的推移、温度变化以及机械冲击而产生变化，因此传感器需进行定期维护和校准。

The electric parameter of the instrument also is change by time , temperature and machine shock , so the sensor needs maintain and calibrate regularly .

本文研究了电动机转速控制模式，解决了抽油机换向时的机械冲击问题，减少机械磨损。

This paper has studied the motor control pattern of rotational speed , solved the mechanical impact problem in the inverting of pumping unit , and reduced mechanical wear .

本研究系采用微型计算机、波形存贮器等技术装备组成了凿岩机械冲击能、冲击频率、行程、压力等工作参数的微机测试系统。

The system consists of microcomputer and transient wave converter etc For the measurement of working parameters of drilling machine such as impact energy or frequency , stroke and pressure .

利用热粘弹理论和动力有限元方法，分析了推进剂在机械冲击载荷下应力-应变时间历程及粘性加热生热率；

Based on thermo-viscoelasticity theory and dynamic finite element method , the strain-stress history and heat formation rate of viscous heating for solid propellant under the mechanical impact load were analyzed .

通过自主开发的以数字信号处理器为核心的实验平台进行了功能验证，实现了永磁同步电机无机械冲击和最大转矩启动。

Verify the functions through the test platform developed by our team , which takes the DSP processor as the core to realize PMSM start-up at maximum torque and without mechanical impact .