circulation n. 1.循环;运行。 2.传播;环流(量),流通(量)。 3.(杂志等的)发行(额),销数,销路。 4.通货,货币;流通证券。 5.【航空】环量,环流。 the circulation of the blood 血液的循环。 have a good [bad] circulation血液循环良好[不好]。 the active circulation纸币的实际流通额。 the passive circulation纸币的准备额。 the circulation of a bank 银行的纸币发行额。 be in circulation 传播中;流通中,通行着。 put in [into] circulation 传播;使(纸币等)流通,通用,使用。 withdraw ... from circulation 收回;停止发行。
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例句与用法
The larger reverse circulation bits used for drilling through pebbles 卵砾石层大直径反循环桩孔钻进用钻头
Emulator analyse on rake angle of injector hole in reverse circulation bit 反循环钻头引射孔倾角的仿真分析
Discussion on application effect of reverse circulation technique with drilling pale 钻孔桩反循环工艺应用效果初探
Reverse circulation valve 反循环阀
Experimental study of the reduced reverse circulation in thermosyphon solar water heater 防倒流循环家用太阳能热水器的实验研究
The fault tree analysis of interruption of fluid in pump suction reverse circulation drilling 泵吸反循环钻进中循环液中断的故障树分析
Cae on reverse circulation structure of buried pore hammer bit ofthrough model with gas - operated 贯通式气动潜孔锤钻头反循环结构的计算机辅助设计
The practice amp; improvement of refit head dual channel reverse circulation main shaft about g - 3 engineering driller 3工程钻机动力头双通道反循环主轴改装实践
The practice amp; amp; improvement of refit head dual channel reverse circulation main shaft about g - 3 engineering driller 3工程钻机动力头双通道反循环主轴改装实践
This machine adopts two species of drillingtechnique of direct and reverse circulation , the efficiency enhances observably in the process of ovum , gravel and rock layer construction 该机可采用正反循环两种钻进工艺,在卵、砾、岩层施工中,效率显著提高。