tracers (tracer 的复数) n. 追踪者, 描图者, 描绘工具 [计] 跟踪程序 释义与例句 n. 1. plural of tracer 相关短语 ray tracers skip tracers radioactive tracers contact tracers path tracers signal tracers dye tracers bead tracers packet tracers filtrate tracers flow tracers gas tracers intrinsic tracers radioactive tracer [化] 放射性示踪剂 skip tracer 追踪躲债人的人