Computers were used to control the circulation of library stock in the usa in the 1960 s . 二十世纪六十年代，美国已用计算机管理图书馆藏书的流通。
The new york's circulation remained the same but the number of all pages dropped disastrously . 《纽约人》的发行量依然如故，但页数却灾难性地下降了。
As the disease progresses, blood clots may develop and plug up the artery, blocking circulation completely . 病情发展就会形成血块，将动脉堵住，使循环完全断绝。
A task that she carried out so well that her letters from china had a world wide circulation . 她的这件工作完成得非常出色，以致于她所写的《中国通讯》在全世界流传。
On vaporization it reduces the bulk density of upflowing mixture and promotes the circulation of catalyst . 在汽化时使向上流动的混合物的松密度减少，并促使催化剂循环。
It was less than two years after the principle of solid circulation was confirmed in the large-scale pilot plant . 这距固体循环的原理在大型试验装置中得到确认不到两年。
The trickling filter and activated sludge efficiencies cited required primary sedimentation and effluent circulation . 列举的生物滤池与活性污泥法的效率需要初次沉淀和回流。
The trickling filter and activated sludge efficiencies cited required primary sedimentation and effluent circulation . 列举的生物滤池与活性淤泥法的效率就需要初次沉淀和回流。
The blood vessels are in general dilated, although the cornary and pulmonary circulation may show the opposite response . 血管一般是扩张的，但冠状循环和肺循环的血管则可出现收缩。
Formation of precipitation, or failure to produce precipitation, is a matter of importance to the circulation of the atmosphere and to the climate . 降水的形成与否对大气环流和气候学来说都是重要的问题。
