To overcome these difficulties, in this paper ( 1) A Hierarchical Design Optimization ( HDO) technique is developed.

Furthermore, the key of HDO technology is developing catalysts with high activity and good stability.

而开发活性高、稳定性好的催化剂成为加氢脱氧精制技术的关键。

Measurement Volatile HCX in the Atmosphere of Beijing by a Method of Concentrated Large Volume Air Sample/ GC-MS

大体积样品浓缩/气相色谱-质谱法检测分析北京大气中挥发性卤代烃

2) The high dense water ( HDW) with a cold water is occurred in the region south of Cheju Island between 125 ° 30 ′ E and 127 ° E at Sections D and C. The circulation in the region of HDW is cyclonic.

2）济州岛以南在125°30′E与127°E之间在断面C与D存在一个冷的、高密水（HDW），HDW环流是气旋式的。

Study on the injurious mechanism of hot weather with dry wind ( hdw) in Wheat

小麦干热风伤害机理的研究

The seeds of a new line HDY 8 with double low and higher oil content was induced by nitrogen ion beam. One mutant plant which lost green, etiolated and fall to normal was observed in M 1. About one third plants in M 2 still etiolated.

用氮离子处理双低高含油量甘蓝型油菜新品系HDY-8种子，M1出现了一株失绿黄化而后复绿的突变体，其M2仍有三分之一的植株出现黄化反应。

HDY 125 constant potential instrument is developed by using the inverter technology.

HDY-125型恒电位仪利用逆变技术研制而成。

Model HDY 5042 crude oil moisture gauge using low energy radiation

HDY5042型低能核辐射原油水分仪

The features of microcomputer control system of type HDZ& 10B electronic beam welder and main functions to control the welding table system are introduced. The block diagram of the microcomputer control system and the welding control program flow chart are given.

介绍了HDZ&10B型电子束焊机微机控制系统的特点和控制焊接工作台方面的主要功能指标，给出了该微机控制系统的组成框图和焊接控制程序结构图。

Studies on the Acidity, TPR Properties and HDN Activity of Mo Catalysts

Mo系催化剂的酸度、TPR特性与加氢脱氮性能

The catalyst exhibited higher HDS and HDN activity and good aromatics saturation performance.

该催化剂表现出较高的脱硫、脱氮活性及较好的芳烃饱和性能。

The HDN Test on 30 Couples of Habit Abortion and Its Meaning

30对习惯性流产夫妇HDN检查及意义

Genotyping of RhD blood group for application in prenatal diagnosis of HDN

RhD血型基因定型在新生儿溶血病产前诊断的应用

All of these suggest that HDN can improve liver function and lower blood lipid levels.

提示HDN可改善肝功能并降低血脂水平。

Noble metal catalyst has good HDS activity, but low HDN activity.

贵金属催化剂有很好的加氢脱硫活性，但HDN活性较低。

Conclusion: A high IgG concentration does not definitely cause HDN.

结论：孕期基础血型抗体效价高者不一定发生新生儿溶血病；

The problems caused by analogy analysis filters realization error and gain phase error usually impact the reconstruction performance of the hybrid filter banks ( HFB).

模拟分析滤波器的实现误差以及各子带间的增益、相位失配误差的存在都将影响混合滤波器组（HFB）的完美重构效果。

Results are discussed in comparison with those of HFB method, and the Cranking Model has been reasonably evaluated.

并将结果与流行的HFB处理结果进行了比较，指出了HFB处理方法中的不当之处，进而客观地评价了推转壳模型。

However, the nerve injuries caused by HFB electrical stimulation has not been widespread concerned.

但目前由高频电刺激引起的神经损伤尚未得到广泛关注。

It is also presented a finite element analytical model suitable for non-linear analysis of HFB flexural members.

采用有限元方法，建立适于冷弯截面受弯构件性能分析的非线性有限元分析模型。

The self-consistent field equations at finite nuclear temperature& the generalized HFB equations

温度不为零的自洽场方程&HFB方程的推广