circulation n. 1.循環(huán);運(yùn)行。 2.傳播;環(huán)流(量),流通(量)。 3.(雜志等的)發(fā)行(額),銷數(shù),銷路。 4.通貨,貨幣;流通證券。 5.【航空】環(huán)量,環(huán)流。 the circulation of the blood 血液的循環(huán)。 have a good [bad] circulation血液循環(huán)良好[不好]。 the active circulation紙幣的實際流通額。 the passive circulation紙幣的準(zhǔn)備額。 the circulation of a bank 銀行的紙幣發(fā)行額。 be in circulation 傳播中;流通中,通行著。 put in [into] circulation 傳播;使(紙幣等)流通,通用,使用。 withdraw ... from circulation 收回;停止發(fā)行。
Fluid circulation makes the calory and drugs distribution uniformly over the surface of the belly and pelvic cavity 3 .加熱循環(huán)可使藥物和熱量均勻的分布于腹腔和盆腔表面
Model lb fishing cup is a practical and effective tool . during drilling operation , it can be used to recover the heavier drilling cuttings or metal chips which are difficult to be lifted out of the borehole by normal drillig fluid circulation 它是用來撈取鉆井過程中正常的泥漿循環(huán)無法帶出井眼的較重鉆屑或金屬碎屑的一種實用有效的隨鉆工具。