Plasma Arc Machining (PAM) Plasma arc machining is a nontraditional thermal process. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive. The term plasma, as employed in physics, means ionized particles.
Recurring vs. Reoccurring. Reoccur and recur are verbs that share a common root word. While they are very close in meaning, they are not the same. Something that is recurring happens over and over again, possibly at regular intervals. In contrast, something that is reoccurring is simply happening again but not always repeatedly.
To concur is to agree or approve of something. If someone says something you agree with, you can say I concur! Like many words with con, concur has to do with agreement and being together. When you concur, you agree with someone about something or let them know you approve. I concur is a formal (and sometimes humorous) way of saying I agree! or I hear that! Also, two events that happen at the same time can be said to concur. People are happy when good things concur, like when a birthday and nice weather happen at the same time. Thesaurus