circulations n. 流通( circulation的复数形式 ); 血液循环; 发行量; （某段时间的）社交活动 释义与例句 n. 1. plural of circulation 相关短语 thermohaline circulations collateral circulations pulmonary circulations systemic circulations thermohaline circulation systemic circulation 体循环 pulmonary circulation 肺循环 collateral circulation