数据库 数据库管理系统及其实现技术 释文 multilevel recovery 多层恢复
- ultrasonic coagulation
- ultrasonic couplant
- ultrasonic couplant, ultrasonic coupling agent
- ultrasonic coupling agent
- ultrasonic cutter
- ultrasonic decontamination
- ultrasonic delay line glass
- ultrasonic detection
- ultrasonic diagnosis
- ultrasonic diagnostic device
- ultrasonic diagnostics
- ultrasonic drug delivery
- ultrasonic electrolysis combined grinding
- ultrasonic evaporimeter
- ultrasonic extraction
- ultrasonic field
- ultrasonic flaw detection
- ultrasonic flowmeter
- ultrasonic food drying
- ultrasonic generator
- ultrasonic grating
- ultrasonic grinding
- ultrasonic guided wave inspection
- ultrasonic guided waves technology
- ultrasonic guided wave test instrument