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- The vibration characteristic of automotive drive shaft trouble is analyzed. 摘要分析了汽车传动轴故障的振动特征；
- The free vibration characteristics of bar-type fiber optic hydrophone unit were investigated in this paper. 光纤水听器探头是光纤水听器系统的基础。
- Using the transfer matrix method, calculation problem of the spin tube gun s vibration characteristic is resol. 转管炮武器是由含有形似“笼子”的多个身管等部件组成的复杂刚体和弹性体耦合的多体系统。
- the free vibration characteristic 自振特性
- First carries on the modal analysis experiment, analyzes under the different frequency weldment's vibration characteristic. 首先进行模态分析实验，分析出在不同频率下焊接件的振动特性。
- With the help of ANSYS software, the vibration characteristic of blade-disc coupling structure was calculated and analyzed using cycle analysis method. 并采用ANSYS软件，使用循环分析方法对某叶片轮盘耦合结构的振动特性进行了计算分析。
- The vibration characteristic of loudspeakers is investigated experimentally, based on the self-mixing interference effect of semiconductor laser diode. 基于半导体激光器的自混合干涉效应，通过实验研究了扬声器的振动特性。
- Namely it introduces the shaker quantity, the system parameter, the vibration characteristic, the testing device as well as the signal analysis disposure. 即对振动筛的参振量、系统参数、振动特性、测试装置以及信号分析处理等做了介绍。
- Simulation analysis on the Dashihe Bridge is carried out.Its transversal vibration characteristic reappears well when the freight train passes through it. 以大石河大桥为例进行了仿真分析，再现了货车通过时该桥的横向振动特性。
- By using the test result of an model s free vibrating frequency and vibrating form,the free vibrating characteristic and disciplinarian of curve arch bridge are analyzed. 弯拱桥作为一种空间结构物,其自由振动也呈现出空间特性,通过对弯拱桥模型的自振频率及振型的测试,分析了模型的自振特性及自振规律。
- Abstract The influence of firing order and firing interval on vibration characteristic and firing dispersion of multiple launch rocket system (MLRS) was analyzed. 摘要 研究多管火箭射击顺序和射击时间间隔对其振动特性和密集度等系统性能的影响，为优化射击顺序提高射击密集度提供直接的方法。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- In view of the different raft structure, the finite element model of raft has been established, and the natural vibration characteristic and isolation effect are calculated using MSC/PATRAN. 针对不同的筏体结构，在MSC/PATRAN中建立浮筏的有限元模型，并且分析其固有振动特性、隔振效果，为隔振设计提供参考。
- The main topic of this paper is to describe the basic principles of the hammering method and problems about vibration characteristic measurements of the rotor of a 4000 HP gas turbine by using this method. 本文主要论述锤击法的基本原理及用这种方法对4000马力燃气轮机转子的振动特性进行测试的有关问题。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- Vibration characteristics of a complex system directly to influence is a current problem for engineers. 有目的地影响复合系统的振动特性是开发工程师的现实任务。
- By mean of these vibration characteristics of ball mill, the performance of ball mill can be improved. 通过振动特性来测量料位，磨煤机的工作性能可以得到改善。
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- The crankshaft torsional vibration characteristics was studied based on the results of measurement made at the pully. 摘要关于曲轴扭转振动特性的研究是基于在三角皮带轮上的测量结果，而不是那些与三角皮带轮有相对关系的结果。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
