系统盘

Features of forced response of the mistuned bladed disk under different system parameters like coupling degree, mistuning strength, viscous damping and non-linear friction strength were investigated.

研究失谐叶盘系统在不同的耦合强度、失谐程度、粘性阻尼系数、干摩擦强度等系统参数影响下的受迫响应特性。

The results demonstrate that the proposed multi-harmonic method is very efficient for studying the mistuning effects on the resonant response of bladed disks with blade-to-blade dry friction damping, especially considering the combined effects of various system parameters.

结果表明，提出的多谐波分析法能够高效地研究失谐对带有叶间干摩擦阻尼的叶盘系统共振响应的影响特征，尤其适合考虑各种系统参数的综合影响。

Mistuning destroysthe symmetric properties, and produce modal localization for a bladed disk. We definea modal localization parameter for the blade-disk system modes.

本文利用叶片的最大振动能量与其它叶片平均振动能量之间的相互关系，定义了一个系统模态局部化参数，该参数能够较为准确地反映叶盘系统模态振型的能量集中程度。

An advanced USB off-line system, supporting U plate transmission, which can realize a thorough off-lining while processing and can also realize one computer driving multi machines.

采用嵌入式数控系统，中文汉显功能，人机对话，操作简便，先进的USB脱机系统，支持U盘传输，可在加工时实现完全脱机，并实现一台电脑带多台机器。

The closing group with double toggle system,consisting of three platens connected by four tie-bars,is driven by hydraulic cylinder.

最后一组使用的双曲肘系统是由液压缸驱动的（其双切换系统包括三个盘，由四个系杆连接在一起。

This paper analyzed the balance precision and grade of high speed grinding wheel and its effect on grinding performance analyzed. The unbalance causes of high and super high speed grinding wheel were discussed too. The evaluation and selection for the balance precision of high and super high speed grinding wheel were studied. Furthermore, the paper analyzed the principle and significance of dynamic balancing technology of high and super high grinding wheel.

对高速转子平衡精度和等级及其对磨削性能的影响进行了理论分析，并深入讨论了超高速砂轮系统的不平衡因素，研究了超高速砂轮系统平衡精度的评价与选择方法，分析讨论了盘形高速和超高速磨削砂轮动平衡技术的原理和意义。

If the "second-hand notebook," the collapse of the system, as long as the first program in the BIOS set to boot CD-ROM driver and guide, and then restart the machine, system recovery disk Add, when prompted to choose the interface of the operating system re-cover it.

假如&二手笔记本&的系统崩溃，只要先将BIOS程序里的引导驱动设置成光盘引导，然后重新启动机器，放入系统恢复盘，在提示界面上选择重新覆盖操作系统就可以了。

Main products: Inert Gas IG-541, heptafluoropropane (HFC-227ea), CO2 gas fire extinguishing system; alarm valve, deluge valve, pre-function valve, flow indicator, signal butterfly valve, spray head, decorative plates, hot poly cover water spray system equipment; emergency lighting, emergency power, emergency evacuation signs lights, Light-Storing-style evacuation signs and other equipment.

主要产品：惰性气体IG-541、七氟丙烷（HFC-227ea）、CO2气体灭火系统；报警阀、雨淋阀、预作用阀、水流指示器、信号蝶阀、喷淋头、装饰盘、聚热罩等水喷淋系统设备；应急照明灯、应急电源、应急疏散标志灯、蓄光式疏散标志牌等设备。

After pathogenic fungi identified,we found 26 of them can cause cotton leaf spot. The 26 pathogenetic strains were carried out morphological and molecular identification of the firm. The initial identification of the pathogens is through the morphological observation such as the determination of growth, colony morphology, conidia and conidial stalk.

通过对生长量的测定，菌落形态，分生孢子和分生孢子梗等形态学观察进行形态学鉴定；通过PCR扩增真菌核糖体基因转录间隔区序列并测序，并将序列在GenBank上进行同源性比对和构建系统系统发育树等方法进行分子鉴定，鉴定出这26株真菌分属链格孢属、镰孢属、黑孢属、刺盘孢属、匍柄霉属等5个属。

The linear threshold speeds of both the rigid symmetrical and single-disk symmetrical viscous-elastic rotor-bearing systems are studied respectively.

研究了刚性对称转子-轴承系统、单圆盘对称粘弹性转子-轴承系统的线性失稳转速。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。