雙重止回閥 — shuāng zhòng zhǐ huí fá

1

shuāng¹

pair, couple; both; measure word for things that come in pairs / heavy, weighty; to double, to repeat / to stop, to halt; to detain; to desist / to return, to turn around; a time / clique, valve; a powerful and influential group

2

zhòng⁴

pair, couple; both; measure word for things that come in pairs / heavy, weighty; to double, to repeat / to stop, to halt; to detain; to desist / to return, to turn around; a time / clique, valve; a powerful and influential group

3

zhǐ³

pair, couple; both; measure word for things that come in pairs / heavy, weighty; to double, to repeat / to stop, to halt; to detain; to desist / to return, to turn around; a time / clique, valve; a powerful and influential group

4

huí²

pair, couple; both; measure word for things that come in pairs / heavy, weighty; to double, to repeat / to stop, to halt; to detain; to desist / to return, to turn around; a time / clique, valve; a powerful and influential group

5

fá²

pair, couple; both; measure word for things that come in pairs / heavy, weighty; to double, to repeat / to stop, to halt; to detain; to desist / to return, to turn around; a time / clique, valve; a powerful and influential group

As word