The uncertainty of evaluation results of delay between channels of linear measurement system by using the least mean square four-parameter sine-wave curve-fit method is described.

介绍了用正弦波拟合法评价测量系统通道间延迟时间差不确定度的分析和评定过程。

youdao

They were alone on sixty-four million square miles of ocean.

VOA: special.2011.05.04

Well, I'm going to get back, let's just draw a bigger square than usual that's roughly four times the size.

嗯，返回的是，我画一个更大的方形,大致上是4倍的大小。

哈佛公开课 - 计算机科学课程节选

It varies with the square of distance so it goes - in order to go twice as far it takes four times as long.

速度是与距离的平方正相关的--,如果要扩散两倍的距离要多花四倍的时间

耶鲁公开课 - 生物医学工程探索课程节选

The new pontiff gave his Angelus, or noon blessing, from the papal apartment window, speaking to more than 200, 000 worshippers in the square four days after his election as pope.

CNN: March 17, 2013 -- Updated 1658 GMT (0058 HKT)

More deft footwork resulted in another sweep over backward square for four and a second six just cleared long-on.

BBC: SPORT | Cricket | Unconvincing England beat Ireland

On Thursday morning, the tribunal heard from retired Superintendent Tom Butler who was based at the Garda's Dublin Metropolitan Headquarters in Harcourt Square for four years up to 1988.

BBC: Dublin reporter