Traceyn.特雷西; 特蕾西
tracen.痕迹;微量;踪迹v.追踪;描绘;找出根源
trace of rainfall微雨量
trace constituent痕量成分,痕量构分
trace whole blood微量血
trace heavy metal痕量重金属
trace amount gold痕量金
trace of a matrix矩阵的迹
trace information[计] 跟踪信息
trace hydrosphere痕量水分
trace sensitivity轨迹灵敏度
traceability cell追溯单元