时间精度高、输出秒脉冲精度达微秒级。
High precision time, outputting second pulse reach microsecond.
响应时间快，LED的响应时间为纳秒级。
所述脉冲式线激光器为纳秒级脉冲绿光激光器。
The pulse type line laser is a nanosecond grade green laser.
在我二年级稍后一段时间里，我最终实现了用4分54秒跑完一英里。
Oh... And during the later part of my sophomore year, I finally ran a 4:54 mile.
运行测试的间隔时间是秒或者分钟级的。
The time between running tests is on the order of seconds, or minutes.
运行测试的间隔时间是秒或者分钟级的。
The time between running tests is on the order of seconds, or minutes.
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