underground
The definition of a switch is a device that closes and opens an electrical circuit.
The knee joint is an example of a body joint that opens and closes as it flexes and extends during movement.
A barometric damper is a device typically installed in a chimney to control the draft or airflow. It uses a weighted flap that opens or closes based on the pressure in the chimney. When the draft is too strong, the flap opens to reduce the airflow, and when the draft is too weak, the flap closes to increase the airflow.
The NYSE opens at 9:30 A.M. Eastern Time and closes at 4:00 P.M. Eastern Time.
In most fish species, the number of times the mouth opens and closes is unrelated to the number of times the gill covers move. The two movements serve different functions: the mouth is used for feeding and respiration, while the gill covers are specifically involved in respiration. These movements are controlled by different mechanisms in the fish.
A pressure switch opens or closes in response to a predefined pressure setpoint, which is determined by the internal mechanism of the switch. When the pressure in the system rises and exceeds this setpoint, the switch activates, either opening or closing an electrical circuit. The specific action—whether it opens or closes—depends on the design of the switch, which can be configured as normally open (NO) or normally closed (NC). Additionally, the pressure hysteresis settings can influence the exact point at which the switch resets after activation.
The epiglottis is a flap of cartilage that opens and closes the trachea. It is located at the root of the tongue.
Broker opens and closes deals upon the demand of its clients?
It closes at night because there is not sunshine.And opens at the day because there is sun.
it opens and closes
our eyes ; )
the Queen
opens and closes the circuit
The definition of a switch is a device that closes and opens an electrical circuit.
The knee joint is an example of a body joint that opens and closes as it flexes and extends during movement.
Matalan opens at 9 am weekdays and closes at 7 pm and on Sunday, it opens at 10 and closes at 5 pm.
A tire valve is designed to allow air to escape when pressure is applied, but not to let air enter when there is no pressure. This is because the valve has a one-way mechanism that opens when pressure is applied from the inside, but closes to prevent air from entering from the outside.