请教个问题好吗？空运运单上的MYC和SCC、AWC是什么意思呀

ACC ACCESSORY CHARGE 附加费
AFC AIR FREIGHT CHARGE 空运费
APC AIRPORT CHARGE 机场费用
APF APPRAISAL FEE 鉴定费
API ANIMAL & PLANT INSP. FEE 动植检费
ATC AIR WAYBILL TRANSFER CHARGE 调单费
AWC AIR WAYBILL CHARGE 运单费
BBC BREAK BULK CHARGE 分拨费
BTF BONDED TRUCK FEE 监管车费
CAC CARGO AGENT CHARGE 代理费
CAF CARTAGE FEE 卡车费
CCC CERTIFICATE CHANGED 换证费
CCG COLLECT CHARGE DUE AGENT 到付佣金
CDA CC&DC DUE TO AGENT 代理清关送货
CEF CUSTOMS ENROL FEE 海关注册费
CFS COLLECT FROM SHIPPER 实收客户
CIF COMMODITY INSPECTION FEE 商检费
CLC CONTAINER LOADING CHARGE 装箱,板费
CMC CARGO MOVING CHARGE 搬运费
CMF CONSIGNEE MODIFIED FEE 更改收货人
COF COURIER FEE
COMM COMMISION 回佣
CSC CUSTOMS CLEARANCS CHARGE 清关费
CSI CUSTOMS SECURITY INSPECTION CHARGE 海关安检
CTC CUSTOMS TRANSMIT CHARGE 转关费
CUS CUSTOMS CHARGE 报关费
DDC DOOR TO DOOR CHARGES 门到门费用
DDF DELAYED DECLARATION FEE 滞报金
DEF DELIVERY FEE 送货费