目的探讨局部振动对组织中血管内皮活性物质的影响及意义。
Objective To study the effects of local vibration exposure on vascular endothelial substance and its meaning.
结论长期从事局部振动作业对工人心理、行为改变有一定的影响。
Conclusion Longterm employment in local vibration job can cause certain influence on workers mental health and behavior.
当体积源向壁面传播与边界层作用，会在边界层内产生局部振动。
The sources interacte with the boundary and produce local disturbance in the boundary.
结论：局部振动刺激力量训练法能够有效地增强肌肉力量训练的效果。
Conclusion: the local vibration stimulus strength training method can effectively enhance the muscular strength training effect.
比较了结构在空气中的局部振动频率与在水中的局部振动频率的变化趋势。
The varying tendencies of local frequencies of the plate type structure vibrating in air are compared with those in water.
说明局部振动导致血清NO浓度降低，并可能参与了振动性血管损伤过程。
It indicated that vibration could result in the decrease in serum concentration of NO which might play a role in the process of vibration induced vascular impairment.
结论局部振动导致的血浆一氧化氮浓度的降低，可能与振动性血管损伤有一定联系。
Conclusion Local vibration could result in the decreasing of the concentration of plasma NO, probably related to the vibration-induced vascular impairment.
船舶尾部结构的振动问题应同时从船体总振动和尾部结构的局部振动两方面来考虑。
Both the ship hull vibration and the local vibration of ship stern structures should be taken into consideration in the vibration problem of ship stern structures.
索的局部振动虽然对结构主要振型的频率影响不大，但对振型能量分布有比较明显的影响。
Cable local vibration has little effect on the modal frequency, but more on the modal energy distribution.
结论局部振动所致的组织中血管内皮活性物质的变化，可能与局部组织缺血、功能紊乱有关。
Conclusions Changes of vascular endothelial substance of tissues induced by local vibration may be related to tissue ischaemia and dysfunction.
计算表明，2 750TEU集装箱船的局部振动性能良好，满足亚临界动态设计的设计衡准。
The results indicate that the local vibration characteristics of 2 750 TEU container vessel are satisfactory and meet the requirements of sub-critical dynamic design criteria.
对砖拱楼盖，采用拱框结构力学模型进行了自由振动分析，并探讨了局部振动和整体振动等同题。
The free vibration analysis is conducted by using arch-frame structure model for brick arch floor, from this the local vibration and the whole vibration of the arch are studied.
为有效地改善该箱体的动态特性，进行了箱体局部振动固有振型的修改，提出了箱体结构修改的初步建议。
A new method is advanced for comparing the natural frequencies by the author. Also, the structural dynamic modifications are carried out on the case.
本文给出了分析导弹弹体含有内部结构梁的横向弯曲振动特性的计算方法，特别是可用来计算导弹内部结构梁的局部振动频率和模态。
An analytical method is presented in this paper for calculating the lateral bend vibration characteristics of the missile including the inner structure beam in the missile body.
针对某125摩托车局部振动比较严重，采用有限元分析软件ANSYS，对该款车架进行了结构模态分析，得到车架固有频率和振型。
In view of the locally severe vibration of a 125 motorcycle, the paper makes a structure modal analysis with ANSYS to get the natural frequency and the vibration mode of the frame.
为使第二阶模态频率避开发动机一阶惯性力频率，文中对扶手架的质量、刚度进行局部修改，结果使手把振动有较大幅度的下降。
To separate these frequencies, we make a local modification to mass and stiffness of the handle and results in the vibration on the handle of walking tractor to reduce considerably.
所以作者主要是应用一维弹性波理论及板壳振动理论对局部噪声屏蔽进行理论研究，并用试验来验证理论分析的可靠性。
So one-dimensional elastic wave and plate vibration response theory are mainly applied to study the structure and experiments are made to verify the validity of the theory.
分析了叶片的失谐量和轮盘的转速对结构振动模态局部化的影响。
The effects of magnitude of blade disorder and disk rotating speed on the vibration mode localization are analyzed.
计算还揭示了局部刚度损伤对结构局部阻尼特性、振动能量分布和阻尼耗能行为的影响。
Moreover, the effect of local stiffness damages upon the local damping properties, vibration energy distribution, and the behaviors of damp dissipation of structures are investigated separately.
通过改变机体表面局部刚度，对减小机体表面振动响应的几种方法进行了探讨。
Several methods to reduce block surface vibration response by changing the local stiffness of the block are discussed.
对有局部非线性的船舶推进轴系振动稳态响应进行理论和试验研究。
Theoretical and experimental research on steady vibration response of shipping propulsion shafting with local nonlinear characteristics are done.
研究了某型飞机局部结构改装振动响应增量预估问题。
Investigates the prediction of vibration response increment of some airplane with local structural modifications.
工程实践证明，闸门在动水启闭过程及在某些局部开启运行时由于水流的作用，都有不同程度的振动。
The engineering projects show that tainter gates have vibration of different degree caused by water flow action during gate operation in dynamic water or gate partial opening.
根据随机振动试验的有关理论，确定产品局部应变载荷的概率密度函数。
The probability density function of partial strain loading of product is defined in accordance with the relevant theory of random vibration test.
文章研究了受初始静载荷作用下夹芯复合材料曲梁的面板的局部自由振动问题，并给出一种相应的理论分析方法。
A theoretical approach is provided to investigate the problem of local free vibration of an initially stressed curved sandwich beam in this paper.
基于有限元直接法计算振动板的频率响应，以板局部厚度为设计变量，计算了振动速度对局部板厚度的灵敏度；
Its frequency response is calculated by use of FEM and its vibration velocity sensitivity with respect to its local thickness as a design variable is computed.
采用该模型计算了健康和局部破损梁的振动特性参数，计算结果与实际测试结果相吻合；
The parameters of vibrational characteristics for healthy and broken RCBs were calculated by the model and the mode parameters of a real RCB were tested.
结果表明，失谐会导致系统的振动模态出现局部化现象。
It is indicated from the results that due to disorder the phenomenon of vibration mode localization appears in the system.
直流偏磁会导致变压器噪音增大、振动加剧，可能引起变压器局部过热甚至损坏。
DC biasing can cause transformers noise increasing, vibration intensified, local overheating and even damaged.
当箱型臂截面设计合理且在危险截面处实施局部补强后，可使臂架具有良好的刚度，强度，振动稳定性。
When the box section design boom and a reasonable cross-section are put in danger of partial reinforcement, the arm can have good stiffness, strength, vibration stability.
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