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A step change in processes 程序的步骤改变
In television, a short duration variation in the luminance following a step change in the video signal. 电视技术中，电视信号在出现一个阶跃变化后引起亮度的短时间闪烁。
A step change in the way energy suppliers operate so that they focus on reducing demand rather than just supplying as much energy as possible. 改变能源供应商的运转模式,使他们能够注意到降低需求的必要性,而不是纯粹受利益的驱使,为消费者无止境地提供能源;
Soundscape represents a step change in the field of environmental acoustics in that it combines physical, social and psychological approaches. 声音景观在环境声学领域呈现出一个阶段性的改变。
This is effective in preventing low frequency oscillation (of a few Hz or less) and has a particular effect on the rising waveform for a step change in pressure. 这有效地防止了低频震荡（几个赫兹或者更低），并且对压力小幅变化的上升波形产生特别的影响。
"The quality of content, like video, is improving as are the handsets.It's a step change in the level of service," Vodafone's Graham Ferguson told a forum in this Riviera town. 随着电视画面的传输技术日益提高，第一个专门为小小的手机屏幕制作的电视肥皂剧已经由媒体巨头新闻集团推出。
New Technology Creates a Step Change in Drilling Efficiency 新技术使钻井效率发生了跳跃性变化
Dynamic heat characteristics of radiators after a step change in flow rate 流量阶跃变化后散热器动态热特性分析
In process of time, Rome became a great empire by conquest. 随着时间的推移，罗马通过征服异邦而成了一个大帝国。
in television,a short duration variation in the luminance following a step change in the video signal 电视技术中，电视信号在出现一个阶跃变化后引起亮度的短时间闪烁
A step made in walking; a stride. 一步行走时跨出的一步; 一大步
He proposed making a change in the plan. 他建议把计划作一些改动。
A change in the law would be to everyone's benefit. 法律中的一项修改将符合所有人的利益。
The project is not finished but is till in process. 该项工程尚未结束，仍在进行之中。
Response time for a step change is approximately 500 msec, which is acceptable for most current-loop control devices, such as control valves. 指令改变的响应时间约为500毫秒，对大多数的电流回路控制设备是可接受的，例如控制阀门。
The judges felt this represented a step change on the existing strategy tree, and laddered the concept to a whole new level. 评委们觉得这个词表达了现存“战略树”迈出了改进的一步，而且使（战略）概念跨向了一个全新的水准。
There was a sudden change in the plan. 计划突然改变了。
The car is in process of repair. 那车正在修理中。
I noticed a subtle change in his attitude. 我注意到他的态度发生了微妙的变化。
This is a step change," said Eric Spina, dean of Syracuse University's engineering and computer science programs, which also helped with the pilot's development. “这是一个巨大的变化”，锡拉丘兹大学的工程和计算机科学系院长说，它同时也促进该实验的发展”。