便携测试仪
portable testing instrument
便携式测试设备
convenient test equipment
portable testing equipment
便携式仪器
portable instrument
portable device
Portable inspection instrument
Portable instruments
pocket instrument
facility carry apparatus
portable unit
便携式仪器土层测气法
portable detecting soil gas method
直读式测试仪器
direct reading instrument
地震检波器测试仪器
seismometer testing apparatus
便携式测量系统
portable measurement system
防腐式仪器仪表
corrosion-proof instrument
光照式测试仪表
illuminated dial instrument