单纯的,单一的( simplex的名词复数 );
"simplex system"
"a simplex word has no affixes and is not part of a compound--like `boy' compared with `boyish' or `house' compared with `houseboat'"
simplex method单纯形法;单一法
herpes simplex[医]单纯性疱疹
herpes simplex virus单纯性疱疹病毒
simplex algorithm单纯型算法