顶阀

Traditional form:

頂閥

Pinyin (reading):

dǐngfá

Definitions:

• top valve
• head valve

Characters:

• 顶 - top, summit, peak; to carry on the head
• 阀 - clique, valve; a powerful and influential group

Traditional characters:

• 頂 - top, summit, peak; to carry on the head
• 閥 - clique, valve; a powerful and influential group