Dirt Trackin 泥地赛车

The satellite's trackin' Santa 卫星正跟踪圣诞老人

dielectric trackin 绝缘击穿

Trackin Dye-2D D蛋白电泳指示染料

trackin g performance 跟踪性能

signal subspace trackin 信号空间跟踪

Dirt Trackin Sprint cars 沙尘追踪汽车冲刺

communication network for trackin 测控通信网

rhymingon the same trackin agreement 合辙