expansion slots :D
expansion slot is what ive found on most web sites so this must be it hope i helped you out
it is a opening in a mother board where other circuits boards can be inserted to add new capabilities.
one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay one is the circuit opening relay
opening of circuit..
The penis is inserted into the opening at the front of the vagina.
Perhaps a port (opening), or a bay (contained receptacle)?
Dilation
Dilation
no === ===
measuring current usually requires opening the circuit to allow a meter to be inserted in series with the circuit, although clip-on current probes are available (but are rather expensive and typically bulky) that can simply be clipped around a wire without needing to modify anything.
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Removing a bulb - or opening the switch - breaks the flow of current in a series circuit.