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CPT symmetry
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Carbamazepine
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Taikonaut
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Aldebaran
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Oat
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Boron nitride
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Gynandromorphism
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Adenocarcinoma
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IAM
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Anti-oncogene
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Low-water mark
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Principle of complementarity
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Heliosphere
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SQUID
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Earth
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Plain text
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Antiserum
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Final assembly building
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Selecting
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Swaping
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Conduction block
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Hiccups
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Pulmonary disease
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Cochlear implant
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Vehicle occupancy rate
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Secunia
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Indehiscent
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Succinic acid
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Avascular
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Jet engine
Dry contact
A dry contact is a type of switch that opens or closes controlled by the electricity distributor depending on the time period: peak or off-peak, for example.
On electronic meters it is identified by four terminals that operate in pairs. Marked C1/C2 and C3/C4, they are not sealed and can therefore be connected to a day/night switch.
This diagram of an electricity meter shows the dry contact at C1/C2 and C3/C4. © DR
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