bridge installation instruction
building services application and installation guide
filter installation instruction
installation instruction
Institution institution
valve lifter guide bracket
one-address instruction; single address instruction
Oral instruction; Oral teaching; Verbal instruction
Oral teaching; Oral instruction; Verbal instruction
Verbal instruction; Oral instruction; Oral teaching
flow guide combination of depressed plate and guide piers
guide blade [= guide bucket
Guide blade of rear guide impeller
16 Channels’ nucleonic instrumentation
500 kV switchgear installation