FR-FR Frame Relay – to – Frame Relay
phase-rotation relay phase-sequence relay
phase-sequence relay phase-rotation relay
slow-release relay (=slow-releasing relay)
abide by contracts and keep one’s words
all the people keep fit
can keep on of development
can keep on the development
Chains of horticultural produce to keep fresh
control pressure and keep fluidity
Crop stubble keep in field
design of keep hydraulic system press
DROUGHT-RESISTANT AND KEEP A FULL STAND