Net Head is derived from Total Head minus Head Losses.
净头是来自总目负水头损失。
She happened to bring up who was behind the total head-shaving idea.
她碰巧告诉我是谁给她出的这个剃光头的主意。
This, of course, begs the questions: what is Total Head and what are Head Losses?
这当然，回避的问题：什么是总团长和水头损失是什么？