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- square wave flow pattern 方波气流型态
- Suit for reflow and wave flow solder. 适应再流焊与波峰焊。
- Standard output includes sine wave, square wave, inclined wave, noise wave, Sin(x)/x, true flow and other is undee. 客户未按照说明书要求，错误安装，保管及使用而造成的设备（包括部件）故障或损坏；
- Excellent staable are from Ac square wave, avoid high frequency hazard. 交流方波自稳弧性能优异,免除高频危害。
- The concept of square wave and EFT drive unit are introduced in this paper. 本文介绍方波信号发生器及场效应管驱动器的原理与设计。
- When the square wave signal pass the LPF,we can get the sine signal. 经过分析可知,检测过程中的低通滤波器对检测的精度和速度有重要影响。
- Introduce the principle of MOSFET AC square wave inverter power source. 介绍了MOSFET交流方波逆变电源的工作原理。
- Square waves, like sine waves, are periodic. 方波如正弦波一样是周期性的。
- The flow diagram of flow patterns was obtained. 得到了流动状态图。
- Fundamentally there are ten elements or features relating to WPF, viz. flow direction, flow mod-el, flow sequence, flow quantity, flow wave, flow velocity, flow duration, flow block, flow distance and flow pattern. 初步分析伤员流具有10个要素:流向、流态、流序、流量、流波、流速、流时、流障、流距和流型。
- As an example of the technique, let's compute the Fourier series which corresponds to a square wave. 作为这种方法的一个例子，让我们计算一个方波的傅里叶级数。
- This turbulence caused the flow pattern in the tunnel to be similar to the flow pattern in free air at a higher Reynolds number. 这种紊流使风洞内的流谱与在较高的雷诺数下自由气流中的流谱相似。
- For sine wave, triangle wave, and square wave, the good performance of current output is proved by experiments. 经过实验验证,对于正弦波、三角波和方波,负载输出电流波形跟踪良好。
- Using non staggered BFC grid system, the effect of electromagnetic field on molten flow pattern in soft contact mold was simulated. 采用非交错网格和适体坐标方法数值模拟了电磁场对软接触结晶器内钢液流动的影响规律。
- The signal thus received will no longer look like a square wave but will be distorted in shape and spread out in time. 这样收到的信号看起来不再象矩形波,而是受到畸变,并且持续时间延长了。
- Another measure of holdup is the k factor used by Bankoff in connection with the bubble flow pattern in gas-liquid flow. 滞留现象的另一个度量是Bankoff在气-液流动的泡状流型中所采用的因数K。
- When the actuator is actuated with a square wave, the corresponding mean velocities are 4.70m/s and 4.22m/s. 该致动器存在两个共振频率;在共振频率下工作;方波分别出现了4.;70m/s和4
- The area contraction ratio has obvious influence on the flow pattern, discharge, wall pressure and air pressure inside level rotary flow. 研究发现面积收缩率对流态、泄流量、壁面压强和空腔内的气体压强均有较大的影响。
- Velocity vectors and vorticity in vortex wave flow field are measured quantitatively and analyzed synthetically based on the numerical simulation and experiments. 从实验和模拟计算两个方面,对涡旋波流场的速度矢量图和涡量进行了定量测试和综合分析,并对涡旋波流动与其特征影响参数之间的关系进行了研究。
- In the square wave current welding,the inductance is very important to influence the fomation of square wave A. 在方波交流焊中，电抗器的电感量对方波的形成及电弧的稳定性有着很大的影响。
