ADJ (in sound recording) using tape containing two or more tracks, usually four to twenty-four (录音中)多音轨的
The study included 386 kindergarteners from schools in the Fast Track Project, a multi-site clinical trial in the U. S. that in 1991 began tracking how children developed across their lives.
这项研究涵盖了参加“目标追踪计划”项目的学校中的386名幼儿园学童，该项目是一个美国的多点临床试验项目，从1991年开始追踪儿童一生的发展情况。
In the late nineteen fifties he invented the eight-track recording method known as multi-track recording.
VOA: special.2009.09.27
"I got the idea for the multi-track from my mom, who said,'You know,Lester, you sound like everybody else and everybody else is sounding like you.
VOA: standard.2009.08.14
Soon after, the first multi-track tape recorder, also designed by Les Paul,was marketed.
VOA: standard.2009.08.14
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