差压式检漏
differential pressure leak detection
多通道方差方法
Multiple-band deviation test
减小方差方法
variance reduction technique
继承创新方式方法
Carrying forward and Innovating Ways
检查方法
Examine method
Checking ways
detection methods
Inspection method
method of examination
Check method
physical examination method
Examination
Inspection
checking methods of data
Measurement
checking method
Investigating methods
inspection measure
inspecting way
简单抽样检查方法
simple sampling inspection plan
微生物限度检查方法
microorganism limited inspecting method
Microorganism limit inspection method
质量检查方法
Quality inspection method