If you keep your rotation intervals to a sensible amount (say, every 7.5 seconds) that should give you plenty oftime to process the output.
若让循环间隔在一个合理数字(如，每7.5秒)内，你就有充足时间来处理这些输出。
2
But the system has also encouraged farmers to alter time-honored crop rotation practices and the mix of herbicides that previously had kept weeds in check.
但是该体系鼓励农民改变长期以来的轮作制度和混合使用除草剂，在以前这些方法很好的控制了杂草。
3
Since Earth’s rotation rate varies, so would the value of one second when it’s defined as a fraction of the time it takes for one spin of the Earth on its axis.