查询词典 AC

Objective To explore the diagnostic value of achalasia by transabdominal ultrasonography.

目的 探讨应用经腹超声对贲门失弛缓症(Achalasia，AC)的诊断价值。

Ac? 231 Pa? 235 U of actinium series in sediment core collected from eastern Pacific were measured by HPGe γ spectrometry.

用HPGeγ能谱法测定了一个东太平洋沉积物岩心的锕放射系核素2 2 7Ac、2 31Pa、2 35 U 。

In this paper, based on MPEG 2 Test Model 5 (TM5) bit rate control algorithm, there are some improvements proposed:① an intelligent integral action is proposed for improving the control precision of bit rate;② after using DCT AC coefficients to define the measure of macroblock and picture coding difficulty, an improvement on target bits allocation is proposed for the decoded picture quality and conformance including scene change, which can adjust the target bits allocation adaptively by their measure.

针对MPEG－2测试模型5（TM5）比特速率控制算法进行了以下改进：①引入一种智能积分作用，有利于提高比特速率的控制精度；②采用DCT交流系数定义宏块和图象的编码难度测度，然后提出了改进的目标编码量分配策略，即根据编码难度测度自适应调整图象和宏块的目标编码量，有利于提高包括场景变化在内的图象解码质量及其一致性。

After a brief review about the problems of bit rate control for MPEG video coding, two optimizations are proposed based on MPEG-2 Test Model 5 (TM5) algorithm:①An intelligent integral action is introduced for improving the control precision of bit rate;②After using DCT AC coefficients to define the measure of macroblock and picture coding difficulty, an improvement on target bits allocation is proposed for the decoded picture quality and conformance including scene change, which can ajust the target bits allocation adaptively by their measure.

文中首先对MPEG视频编码比特速率的控制问题作了简要回顾，然后针对MPEG-2测试模型5(TM5)算法进行了以下优化：①引入一种智能积分作用，有利于提高比特速率的控制精度；②采用DCT交流系数定义宏块和图象的编码难度测度，然后提出了优化的目标编码量分配策略，即根据编码难度测度自适应调整图象和宏块的目标编码量，这样有利于提高包括场景变化在内的图象解码质量及其一致性。

Following up the change of some parameters in AC systems, it can regulate the active power transmitted by DC link and damp power oscillation in s...

在交流系统受到扰动后它通过跟踪交流系统某些参数的变化来调节直流输送的有功功率，从而达到阻尼整个系统功率振荡的目的。

It can run off of batteries or using an AC adaptor.

它可以运行过的电池或使用交流电源适配器。

Its vector control system is one of the most complicated ac adjustable speed control systems.

其矢量控制系统也是最复杂的交流电机调速控制系统之一。

It is shown that solar radiation has severe important influence on outdoor thermal environment in campus,and measures are put forward by increasing campus afforest ac...

结果表明，太阳辐射是影响校园室外热环境的重要因素，进而提出了增加校园绿化面积，大力植树造林改善校园热环境的方法。

AFI and AC may affect ultrasonographic diagnoses, with significant differences.

AFI、胎儿腹围对羊水量测量有影响，且具有显著性差异（P.01）。

For ensure safety normal use upmentioned equipment, then had to eliminate existent all sorts ofs disturbance in electrified wire netting, such as press, wave gush, depression, sinkness, aiguille disturb and so on … Base on above concept, our company de engineer Men cumulate ten number year current supply device de designer manufacture experience, very adopt sines energys dispensers circuit and our companys specific high-tech, launch this new generation de purify AC power certain press utensil.

为了保证安全正常的使用上述设备，就必须消除电网中所存在的各种干扰，诸如过压，波涌，低压，下陷，尖峰干扰等等…基於以上理念，本公司的工程师们累积了十数年电源设备的设计制造经验，特采用正弦能量分配器电路及本公司特有的高新技术，推出此新一代的净化交流电源稳压器。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。