triple-pole double-throw 三刀双掷 ; 三刀双掷开关
throw triple loop 抛三周跳
TPDT triple-pole double-throw 三刀双掷
triple-pole single-throw switch [电] 三极单投刀开关
triple-pole double-throw switch [电] 三极双投刀开关
Because at present there is no millimeter wave single pole triple throw switch (SP3T) product in our country, so the research has its practically significance.
由于国内目前还没有毫米波单刀三掷开关的产品，本课题的研究有一定的实际意义。
Projects manage the triple constraint; scope, schedule, and budget (Sometimes people throw quality and/or resources in there too).
项目管理中需要管理三角约束：范围、进度、预算（有时人们把质量和/或资源也加到约束中）。
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