泛布尔代数理论
pan-Boolean algebra theory
牵引车及挂车的制动装置
Brake Systems for Tractors and Trailers
牵引叉销至车辆前端的距离
distance between towing device and front end of towing vehicle
distance between jaw and front end of towing vehicle
迁移的关系理论
relational theory of transfer
迁移的分析-概括说
analysis-generalization theory of transfer
千兆赫的无线电频率
A frequency of 1 000 000 000 or 1 ×109 cycles each second
千行送交的原始指令
thousand delivered source instructions
千式变压器的维护方法
Maintenance Method of Dry-Type Transformer