of;
Environment,;
POPs;
Research;
Center,;
Tsinghua;
University,;
Beijing;
100084,;
China;
Consultants,;
Inc.;
Shizuoka;
421-0212,;
Japan;
IDEA;
(Beijing);
Institute;
of;
Environmental;
Innovation;
Co.,;
Lt~,;
Beijing;
100084,;
China;
进口变压器; PCDDs; PCBs; 多氯二苯并呋喃; 中国; 油样; 多氯化联苯; 高分辨气相色谱;