1·Time sampling means that researchers choose various time intervals for their observation.
时间采样是指研究人员选择不同的时间间隔进行观察。
2·For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds.
第二和第三篇阅读材料，会一句一句或一个词组一个词组地读，间隔15秒。
3·That means the researcher might decide to observe only during 15 second intervals that are randomly distributed within each 20 minute period.
这意味着研究人员可能会决定只观察在每20分钟内随机分布的15秒间隔。
4·For a selected repetition number, the table of repetition intervals shows after how many days, months or years the next repetition should be made.
对于选定的重复学习次数，重复学习间隔表显示了过多少天，多少月或者年应该进行新的重复学习。
5·You can use them to schedule events that should occur at regular intervals after the initial run, with the period specifying the interval.
可以用它们对那些初次运行之后需要按照常规间隔发生的事件进行调度，使用周期参数指定时间间隔。
1·It should be noticed that intervals are measured upwards.
值得注意的是，音程是向上度量的。
2·Leaps or skips indicate the movement of any one voice by intervals of more than one step.
跳音是用一个音级以上的音程表示任何一个音的运动。
3·Intervals larger than an octave may be expressed by numbers above eight or as compound intervals.
比八度大的音程可用比八大的数字或复音程来表示。
4·Parallel intervals of a fifth, octave or unison are traditionally prohibited in four-part writing.
五度，八度或一度音程平行传统上在四声部作品中禁用。
5·Sharp, flat or natural signs may be placed next to numerals to indicate that these intervals themselves should be sharpened or flattened.
升、降、还原号可标在数字旁边，提示这些音程本身应该升或降。