本文:If more than one spray is located in an interstand space, then whether an
up-hill spray in the same interstand space as a down-hill spray is on or not
can change the cooling capability of the down-hill spray.
這裡的whether or not語法是看得懂..但是中間插了"as a down-hill spary"...
就看不懂了..煩請解惑...謝謝!