英和和英

the switchgear for the shutter

to turn a switch on or off

a {selecting switch}

the breech-operating mechanism

a knob on a door

release by a toggle switch

to turn off a switch

push the shutter

the act of turning something on

wrench off the lock

to switch something on

two-way switch

the knob of door

The key to release

the door-keeper

a keyhole

bolt the door

turn the knob of a door

to push a camera shutter release repeatedly

turn a key

unbolt the door

unlock the door

misplacement of a key

a device that is used to open and close the barrel of a gun, called

a duplicate key

latch the door

the key to the door

the key to the door

a hinged door

latch the gate