直

He was dizzy for a moment, then he gathered himself up and limped over and sat down by his wife and beamed his old-time admiration and affection upon her in floods, out of his bleary eyes.

有一阵儿，他两眼直冒金星，后来清醒了，才一瘸一拐地走过去坐在妻子身边。他那双朦朦胧胧的眼睛，向妻子倾诉着当年的那种赞美和爱意。

Straight off the block we need to state that this is not an official TechArt tuning kit at all.

直了块我们必须指出，这不是一个正式TechArt的校正工具包在所有。

If the required LO is beyond oscillation limits, or the system calls for an external LO, the external signal can be injected at Pin 6 through a DC blocking capacitor.

假如所需要的 LO 达到振荡极限，或者系统使用外部的 LO，外部信号可通过一个 DC 隔直电容注入脚 6。

When compared with TL Buck converter, efficiency of this new converter is higher and the DC voltage blocking capacitor[1] can be smaller, when compared with double frequency Buck converter, voltage stress of the high frequency switches is lower, the output capacitor and inductor is smaller, and the dynamic load characteristic is better.

与三电平Buck变换器相比，复合双频Buck变换器具有较高的效率，而且其"隔直"电容可以取得更小。与双频Buck变换器相比，其具有高频开关电压应力低，输出滤波电感、滤波电容小，动态负载性能好等优点。

The converter can be improved just by exchanging the position of the resonant inductance and the transformer such that the transformer is connected with the lagging leg. The improved converter has several advantages over its counterpart, e.g., the clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. The operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. The effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined.The improved converter is adopted to design the DC/DC converter of secondary power supply in HVDC power system.

本文将谐振电感和变压器交换位置，使变压器与滞后桥臂相连，这样箝位二极管在一个开关周期中只导通一次，同时零状态时谐振电感电流较小，有利于提高变换效率和减小占空比丢失，本文分析改进后变换器的工作原理，并与改进前的变换器进行对比，讨论隔直电容在不同位置对变换器工作的影响，确定一种最佳工程方案。

The converter combines the advantages of the PWM technique and soft-switching technique, the PWM is effected all over the whole loads range, and soft-switching is effeted only in the switching transition period, the ZVS of leading-leg is achieved by using the energy stored in leakage inductor of the transformer and the output inductor, the ZCS of lagging-leg is achieved by using a blocking DC capacitor, the ZVS and ZCS are achieved for the whole load ranges (5A~250A).

控制电路采用相移控制方式，综合了PWM控制和软开关技术的优点，在大范围内实现PWM控制，而在功率器件换流期间实现软开关换流，其中超前桥臂利用变压器的漏感，实现了零电压开关，滞后桥臂利用隔直电容，实现了零电流开关，并且整个变换电路能在（5A~250A）的范围内实现软开关工作条件，满足弧焊电源负载变化大的特点。

Blow-dry your hair so it is straight.

把你的头发吹干并且吹直

In the process of pulverized coal injection into blast furnace, the blowpipe plays an important role in pre mixing the pulverized coal and oxygen, pre heating them and improving the pulverized coal pyrolization and combustion of the coal.

在高炉富氧喷煤过程中，直吹管使喷入的煤粉与氧气预混、预热，并促使煤粉的热解和部分煤的燃烧。

The rotational jet and local oxygen enrichment can improve the mixing of oxygen and pulverized coal, but the effect of coal injection is weak on the whole flow field in blowpipe. The mass and momentum transfer near the exit of lance are very strong.

结果表明，氧-煤喷枪的漩流、富氧率等仅在氧枪出口的有限区域内对流场有较大的影响；喷煤对整个直吹管内的流场影响较小，但在氧-煤喷枪出口附近区域会促使气相和煤粉激烈混合，动量和质量传输较强烈。

On the basis of slip-diffusion model of multiphase flow, a three-dimensional mathematical model of gas-particle flow in blowpipe has been developed and debugged to calculate the gas-solid two phases flow, including gas velocity and particle velocity inside the blowpipe.

运用多相流的拟流体模型建立了高炉局部富氧喷煤直吹管内气粉两相流动的数学模型，对气粉两相流场进行了数值研究，探讨了气相和煤粉的速度分布规律及其影响因素，其中包括氧-煤喷枪的结构、漩流数和富氧率等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。