Within seconds the meter hand should read zero.
在几秒钟内,表针的读数应为零。
or actually ask the TFs in section to hand out a meter exercise that you can do for next week.
或者是叫助教在课间,发下个星期你们要做的关于节拍的作业。
Often a hand held integrating sound level meter such as the Model 30 would be mounted on a tripod at a boundary position and, for example, a 15 minute measurement made.
通常,一个手持集成示范等30人是在边界上的三脚架安装位置和声级计,例如,一个15分钟的测量制成。
or actually ask the TFs in section to hand out a meter exercise that you can do for next week.
或者是叫助教在课间,发下个星期你们要做的关于节拍的作业。
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