791. 冷冻干燥技术 Freeze Drying Technique
792. 冷冻技术 Refrigeration Technique
793. 冷库设计 Refrigerating House Design
794. 离散数学 Discrete Mathematics
795. 离心泵与轴流泵 Centrifugal Pumps & Axial Pumps
796. 离心式压缩机模拟 Centrifugal Compressor Imitation
797. 离心式压缩机强度 Centrifugal Compressor Intensity
798. 离心式压缩机原理 Principles of Centrifugal Compressors
799. 理论力学 Theoretical Mechanics
800. 力热学 Mechanics & Thermology
