1) U-or O-shape hole valve
U或O形孔阀
2) O-type ball valve
O形球阀
1.
By comparison and analysis of O-type ball valve and direct single seat quick opening valve,the new concept of using direct single seat quick opening valve in substitution of O-type ball valve is given;on the other hand,the calculation and choice of model of direct single seat quick opening valve are elaborated.
通过对O形球阀与直通单座快开阀特点的对比分析,提出了选用直通单座快开阀来取代O形球阀的新概念,同时对直通单座快开阀的计算选型方法作了详尽的说明。
3) U valves
U阀
1.
U valves in applied extensively in the CFB boiler ,but the product designed by different factory is different in construction considerably,corresponding the material convey character is also different.
U型返料阀 (以下简称U阀 )虽然在循环流化床锅炉中应用最广泛 ,但是 ,各生产厂的U阀结构形式不尽相同 ,相应的返料特性也不尽相同。
4) O-U noise
O-U噪声
1.
The effect of O-U noise on volt-ampere properties in Josephson Junction is discussed.
讨论了O-U噪声对约瑟夫逊结中伏安特性的影响,结果表明,当考虑热涨落效应时,伏安特性曲线出现“圆拱化”现象;随噪声关联时间增大,零压电流增大,当热涨落参量减小到一定值时,伏安特性曲线中的“圆拱化”现象消失。
5) O-U process
O-U过程
1.
Through analysis and comparison,it has been found that both of the models can meet the same stochastic differential equations and the option is of the same price under the model,with Black-Scholes option pricing model given first,and then its pricing formula deduced by martingale approach,and finally option pricing model of O-U process introduced.
我们首先给出Black-Scholes期权定价模型,并用鞅方法导出其定价公式,然后引入O-U过程期权定价模型,通过分析比较发现这两个模型都满足相同的随机微分方程,并且在此两模型下期权具有相同的价格。
2.
They are governed by the following stochastic differential equations:where O_t is an m-dimensional O-U process governed by the following SDE:H,b_1,b_0,C are m×d, d×d, d×1, d×d matrices, (B_t, W_t) is a (d+m) dimensional Brownian motion.
在§l中介绍了以O-U过程为噪音的两类可解线性滤波模型。
6) O U noise
O-U噪音
补充资料：溢流阀、顺序阀、减压阀的比较
溢流阀 | 减压阀 | 顺序阀 | ||
控制油路的特点 | 通过调整弹簧的压力控制进油路的压力，保证进口压力恒定，p2＝0 | 通过调整弹簧的压力控制出油口的压力，保证出口压力p2稳定 | 直控式－通过调定调压弹簧的压力控制进油路压力；夜控式－由单独油路控制压力 | |
出油口情况 | 出油口与油箱相连 | 出油口与减压回路相连 | 出油口与工作回路相连 | |
泄漏形式 | 内泄式 | 外泄式 | 内泄式 | |
进油口状态及压力值 | 常态 | 常闭（原始状态） | 常开（原始状态） | 常闭（原始状态） |
工作状态 | 进出油口相通，进油口压力为调整压力 | 进油口压力低于出油口压力，出油口压力稳定在调定值上 | 进出油口相通，进油口压力允许继续升高 | |
联接方式 | 并联 | 串联 | 实现顺序动作式串联作卸荷阀用时并联 | |
功用 | 定压、溢流或安全作用限压、稳压、保压 | 减压、稳压 | 不控制系统的压力，只利用系统的压力变化控制油路的通断 | |
进油腔压力p1控制阀芯移动 | 出油腔压力p2控制阀芯移动 | 进油腔压力p1控制阀芯移动 | ||
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条