The combination of three parameters of Doppler is pulse index (PI), resistance index (RI), A/B ratio together with.
用搏动指数、阻力指数、A/B比值，结合二维实时显像对胎儿宫内生长迟缓、畸形、宫内胎儿死亡的研究。
The reduction in serum potassium was positively correlated with the lowering of A/B ratio and the conversion of B to A (P< 0.01).
血钾的降低与皮质酮的转化率及尿中A/B值的变化成正相关。
B. Exhibiting a high ratio of output to input.
展示高比率的输出到输入。
Pump and pump developed can realize high precision A/B with the ratio of 1:1 feed feeding function.
自主研发的泵胶和定量泵能够实现高精准的A/B以1：1的比例供料送料功能。
The objective Sharpe ratio function of land development arithmetic average value portfolio is deduced based on the geometric average B-S model of the basket options in the paper.
参照一篮子期权的几何平均B-S期权定价模型，给出了基于实物期权的多项土地资源储备与开发的算术平均收益的夏普比率优化目标函数。
The practise showed that the key in production is the ratio of liquid a (multi - glycol) to liquid B (isocyanates).
实践证明：多元醇组分(A液)与异氰酸酯组分(B液)的配比是生产中的关键。
The influence of doping elements in A site and B site and the doping ratio on the catalytic activity of perovskite-type oxides was also respectively discussed in this thesis.
并分别深入探讨了A位和B位掺杂元素、掺杂比例对催化活性中心离子的影响。
And b, they have what's called a low expense ratio since they're easy to implement, you don't pay anyone to be brilliant to implement if for you.
但是他们的费用比率很低，因为这种做法很容易，你不需要，有多聪明就能去实施。
Simulations of blanks with different tool width ratio(TV/H) and blank width ratio (B/H) under two load situations are implemented.
分别在两种载荷情况下，对不同料宽比、砧宽比的拔长进行了模拟。
The influences of the dosage of HEA (or HPA, GMA)and ratio of component A and B on the capability of two-component acrylate adhesive were studied.
研究了自交联丙烯酸酯的用量及A组分与B组分的配比对双组分丙烯酸酯胶粘剂性能的影响。
This results in a slowly changing ratio A : B in the distillate.
这使得蒸馏物中A ：B比率发生缓慢的变化。
Should the apolipoprotein B/A1 ratio become the routine lipid measurement for cardiovascular risk stratification?
是否载脂蛋白B/A1比值能作为常规脂质测量用来进行心血管危险分层？
When the mass ratio of B/KNO3 keeps constant, the ignition powder adding fluorine rubber binder is less sensitive than that of phenol formaldehyde resin.
而静电感度则降低，当B/KNO3配比一定时，添加相同的粘结剂氟橡胶比添加酚醛树脂更钝感。
B. campestris content of leaf chlorophyll, leaf area index , leaf area-weight ratio were positive significantly correlated with the PR.
红菜苔叶片叶绿素含量、叶面积指数及比叶重与群体光合速率成正相关；
The Empirical research result certificate the price-earnings ratio index time series of Shenzhen composite B-share index having the mean reversion characteristic.
实证研究的结果证明深证综合B股指数的指数市盈率时间序列具有均值回归特性。
Methods The ratio of B/A, PI, RI of orbit artery was detected in 42 cases with EPH gestosis and control group (90 healthy pregnant women).
方法测定42例妊高征孕妇眼动脉血流参数（B/A、PI、RI）并与90例正常孕妇作对照分析以观察血流参数变化。
The protozoa and bacterial true protein ratio (P/B) increased with the NSC level increasing and each group were significantly different (P<0.05) to the end of training;
原虫与细菌真蛋白的比例（P/B）随NSC的比例增加而下降，至培养结束时，各组P/B差异均显著（P<0.05）；
Hepatitis B and C can be detected by one gene chip. The accuracy of diagnosing hepatitis B in the serum can reach 80%, the pseudopositive ratio by using gene chips was low.
肝炎基因诊断芯片可以同时检测乙型和丙型肝炎，诊断乙型肝炎血清准确率可达80％，假阳性率低。
Practices indicate it has advanced design, high performance-cost ratio, and wide range of speed, reliable operation, and better portability. The electric control system can b...
应用实践表明，该系统设计先进、性能价格比高、调速范围大、运行可靠、可移植性强，可以广泛应用于各种类型卧式镗铣床的电气控制系统改造。
RESULTS:Compared with group B, group A had shorter operative time, shorter duration of postoperative discomfort, higher survival ratio of graft and lower recurrence rate.
结果：A组在手术时间、术后不适感持续时间、移植片成活状况、复发率等方面均明显优于B组。
B deficiency made the cell wall extraction ratio higher, but made no significant influence to the cell wall component in root and leaf.
缺b使细胞壁提取率升高，但对根系和叶片细胞壁组成的影响不显著。
B deficiency made the cell wall extraction ratio higher, but made no significant influence to the cell wall component in root and leaf.
缺b使细胞壁提取率升高，但对根系和叶片细胞壁组成的影响不显著。
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