1.
The Study of Heat Pump Cycle with Natural Refrigerants and Ground Source Heat Pump Performance;
自然工质热泵循环和地源热泵运行特性研究
2.
An Experimental Study of Cascade Refrigerating Cycle with Natural Working Fluids R290 and CO_2;
自然工质R290/CO_2复叠式制冷循环的实验研究
3.
Study on the Enhancement of Boiling Heat Transfer of Natural Refrigerant CO_2 on Horizontal Tube;
自然工质CO_2水平管外沸腾换热强化的研究
4.
Analysis on Performance of Natural Refrigerants Cascaded System for Refrigeration and Heating Pump
自然工质复叠式制冷热泵系统的性能分析
5.
Experimental Research on Refrigeration System of Air-conditioner Which Use of Natural Refrigerant R290
自然工质R290在家用空调器中的应用研究
6.
Study on Replacing of Nature Refrigerants Cascaded Refrigeration Cycle with CO_2 Working in Low Temperature Stage;
CO_2为低温级的自然工质复叠式制冷循环替代研究
7.
Theory and Experiment of Natural Refrigerant Mixture Used in Low Temperature Circuit of Cascade Refrigeration;
复叠制冷系统低温环路自然工质混合物的理论及实验研究
8.
Theoretical Analysis and Experimental Research on R290／CO_2 Natural Refrigerants Cascaded Refrigeration System;
R290/CO_2自然工质复叠式制冷循环系统的理论分析与实验研究
9.
Simulation Study on the Charge Mixing State of Gasoline CAI Based on Combustion Chamber EGR
基于废气残留法对汽油可控自然工质混合状态的模拟研究
10.
Study on an Auto-cascade Refrigerating System with Natural Refrigerant Mixtures;
天然工质应用于自行复叠制冷系统的研究
11.
Water-borne archaizing paints--the application technology remodeling the natural character of wood
水性仿古漆——重塑木材自然气质的涂装工艺
12.
Category of Artificial Nature and Its Structural Features;
人工自然范畴和人工自然的结构特性
13.
This made the bird watching possible to mobilize because the committee takes it as a beneficial activity for children.
因此，带领孩子走进自然，关注社会，自然符合少工委实施素质教育的目标。
14.
Covers the physical losses caused by natural hazards and accidents during the construction period.
承保项目施工期间由于自然灾害、意外事故造成的直接物质损失。
15.
Corporality is the base of natural and artificial forms.
自然形态和人工形态的构成基础是形态的物质性。
16.
In the systems project of raising household consumption quality, circulation enterprises cannot shirk their responsibilities.
在提高居民消费质量这一系统工程中，流通企业自然责无旁贷。
17.
Study on Mixed-Refrigerant R134a/R23 and Its Auto-Cascade Refrigeration Cycle;
混合工质R134a/R23物性及其自然复叠循环特性的理论研究
18.
Study of Indoor Air Quality in a Natural Ventilation and Task-ambient Air Conditioning Room
自然通风和工位空调混合系统室内空气品质的研究