Englishfor English speakers
through
Preposition
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To go through is to go into one side of something and come out the other side.
The thief came in through the window.
She pushed the thread through the hole in the needle.
flux
Noun
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A flux is a chemical agent for cleaning metal prior to soldering or welding.
It is important to use flux when soldering or oxides on the metal will prevent a good bond.
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Flux is the action or process of flowing.