The left to right shunt rate (f) and the transverse sectional area of ductus arteriosus (a) were calculated by color Doppler flow convergence method in 20 patients with patent ductus arteriosus.
用彩色多普勒血流会聚法对20例动脉导管未闭患者的左向右分流率F进行测定，并根据F值计算出动脉导管的横截面积A。
When we measure the heat capacity of heat pump by enthalpy measuring method, we use flow rate measuring method to measure flow rate and sectional mean temperature of air.
利用空气焓值测量方法对热泵的制热量进行测量时，通常采用测流量法测量空气的流量和截面平均温度。
When we measure the air heat capacity of heat pump by enthalpy potential method, the flow rate measuring method was used to measure flow rate and sectional mean temperature of air.
利用空气焓差法进行热泵空气侧换热量测量时，通常采用测流量法测量风的流量和截面平均温度。
The recovery rate by WAG injection in stratified condensate gas reservoirs is higher than that by cyclic gas injection according to the simulation study by use of stratified 2-D sectional model.
通过层状二维剖面模型的模拟研究，证明了在层状凝析气藏中水气交替注入的采收率比循环注气的采收率高。
To find the problem of hospital nutrition works and improve the dining rate of inpatient in nutrition center cross-sectional study about 230 inpatients hospitalized in March 1998 was made.
目的：找出医院营养工作的症结，提高营养膳食就餐率。方法：对我院1998年3月入院的230名住院病人，采用横断面调查法进行了病员就餐情况调查。
The stability and wave overtopping rate of 3 kinds of revetments (sloping, big step and cylindrical structure types) are studied by using sectional model test.
利用断面物理模型试验，对3种结构形式(斜坡段、大台阶段、圆筒段)的护岸的稳定性和越浪量进行了研究。
An equivalent method was estabilised on sectional Walker′s formula with help of characteristic crack growth rate…
用分段裂纹扩展速率表达式进行当量折算的方法．并通过实例验证了该方法的可行性，使?。
An equivalent method was estabilised on sectional Walker′s formula with help of characteristic crack growth rate…
用分段裂纹扩展速率表达式进行当量折算的方法．并通过实例验证了该方法的可行性，使?。
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