because they help other verbs and also the main verbs
the Electoral College
closed
Closed, you need to be a member of the party to vote.
open primary is a better system as this type of system does not require voters to be affiliated with any particular party . There is more freedom to vote in this kind of system.
It is called closed because all the plasma and its contents are contained within the vessels.
closed circulatory system
Closed system
The motto of Military Auxiliary Radio System is 'Proud, Professional, and Ready'.
Contactors have both power and auxiliary contacts. We use the auxiliary contact to control magnetic system of contactor. When a heater , relay or a key warn the contactor it is energized and by the typical magnetic interaction it opens its closed power contacts.
Closed circulatory system or sometimes called cardiovascular system
An auxiliary cable serves to connect a portable device to a sound system. For example, a phone or a portable mp3 player can be connected to the stereo system in a car with the aid of an auxiliary cable.
A system which can exchange mass as well as matter with the surroundings is called anopen system.Example:- Heating of CaCo3 in an open bulb.A system which can exchange energy but not matter is called a closed system.Example:- Calcination of CaCo3 in a sealed bulb.