parametric up-conversion
参量上转换

• taper roller bearing
• taper washer
• taper work
• tap for trapezoidal thread
• tapped
• tapped blind hole
• tapped bore
• tapped hole
• tapper
• tappet
• tap transformer
• target
• target coordinator
• target-designator
• target detection
• target illuminator
• target properties
• target recognition
• target voltage
• tartrate
• Taylor expansion
• Taylor power series
• Taylor series expansion
• Taylor triplet
• T-beam