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Use "overcasts" in a sentence
"Mine "overcasts" are critical to proper mine ventilation, and for many miners,"
"If any of you have been asked by your group presidents, your supervisors, engineers or anyone else to do anything other than run coal (I.e. build overcasts, do construction jobs, or whatever) you need to ignore them and run coal."
"I am not the garden shears that snip a rose from the vine, but rather the unexplainable and persistent shadow that overcasts bush and bloom until both are dead."