Since these rays do not actually meet, they cannot form an image without a condensing lens of sort. A planoconvex lens used to concentrate light.

A more integrated theory of design and analysis has been established for the sake of developing the condensing lens type large aperture Frensnel lens.

建立了一套较完整的大口径聚光镜型菲涅耳透镜设计和分析理论。

The surgery of rhegmatogenous retinal detachment under indirect ophthalmoscope with no hand-held condensing lens

无手持聚光透镜间接检眼镜下视网膜脱离手术

Theory of design and development of condensing lens type large aperture Fresnel lens

聚光镜型大口径菲涅耳透镜的设计理论和研制

Objective To investigate the surgical method and clinical effect of surgery for primary retinal detachment under indirect ophthalmoscope with no hand-held condensing lens.

目的探讨无手持聚光透镜间接检眼镜下进行原发性（孔源性）视网膜脱离复位手术的方法及其效果。

Main studies are as follows: The study was made on the basis of preliminary screening groundsubstance and condensing agent, the prescriptions and preparation processes of the drug were optimized and defined by orthogonal design.

主要的研究工作有：在初步筛选基质和冷凝剂的基础上，通过正交试验优化了处方和滴制工艺，确定了最佳处方工艺条件。

Based on these facts, chitosan can be used as a condensing agent to enhance the transfection efficiency of cationic liposome.

在上述基础上，研究了运用壳聚糖作为压缩基团来提高阳离子脂质体介导的基因传递。

Process optimization of lowering condensing agent isopentane consumption

降低冷凝剂异戊烷单耗的工艺技术优化

Study on Co-Current Mixing Barometric Condenser

并流式大气混合冷凝器的研制

The design of thermal reflux type condenser

热回流式冷凝器的设计

Determination of Impurity Elements in High Purity Graphite by ICP-MS after Mixture Acid Digestion in Reflux Condenser System

冷凝回流三酸体系消解&ICP-MS法测定高纯石墨中的痕量杂质元素

And ( 7) there is a reflux condenser at the top of polymerizer.

采用釜顶回流冷凝器。

This paper analyzes the physical phenomena and the heat transport in the reflux condenser;

本文分析了回流冷凝器内的物理现象和传热过程；

The coil pipe of the condenser also has the advantages of difficult damage and extension of the service life of the device.

这种冷凝器盘管还具有不易损坏，能延长设备使用寿命的优点。

In addition, the difference of design specification coefficientof HEI surface condenser between 95's edition and 84's edition has been mentioned in the paper.

另外，简要介绍了95年版HEI表面式凝汽器设计标准的有关系数取值与84年版的不同点。

Cause analysis of radiator tube bundles' frost-crack for indirect air-cooled system with surface condenser

带表面式凝汽器间接空冷系统散热器循环水管束冻裂原因分析

Optimization of Surface Condenser TTD of Indirect Air Cooling System

简接空冷系统表面式凝汽器端差的优选

Testing and Research on Operation Performance of Indirect Dry Cooling System with Surface Condenser

表面式凝汽器间接空冷系统运行性能试验研究

The Selection of Large Surface Condenser for Power Plant

大型电站表面式凝汽器的选定

The positive pressure problem of the evaporation separator in nitrophosphate slurry condensation system is bound to the scaling of the surface condenser.

经分析，硝酸磷肥料浆浓缩系统蒸发分离器出现正压的主要原因是表面冷凝器结垢。

Online cleaning of surface condenser in cracked gas compressor

裂解气压缩机表面冷凝器在线清洗浅析