sawlog - selective call number
- secondary outlet header
- secondary output voltage
- secondary oxidation
- secondary pairing
- secondary part
- secondary part of a substation
- secondary particle
- secondary particulate matter
- secondary peak
- secondary penetration room
- secondary phase current of the system transformer
- secondary pipelines
- secondary pipings
- secondary plant system
- secondary pneumonic plague
- secondary point code
- secondary pollutant
- secondary polyploid
- secondary pore
- secondary pore system
- secondary porosity
- secondary porosity index
- secondary power supply
- secondary private bus
- secondary production
- secondary protection system
- secondary pulse
- secondary pump
- secondary pumping line
- secondary Q-factor
- secondary quarantine verification
- secondary radiation
- secondary radiator
- secondary radioisotope
- secondary railway telecommunication network circuit
- secondary raw materials
- secondary reactance
- secondary recovery
- secondary recovery method
- secondary recovery methods
