1.
How often do I have to clean the gas fireplace and vent?
我应该多久清理一次我的燃气壁炉和通气系统？
2.
d ventilating-fan system
强制进气排气通风系统
3.
heating, air-conditioning and ventilation
暖气、空调和通风（系统）
4.
general service compressed air system
全船通用压缩空气系统
5.
synchronous communication electrodynamic system
同步通信电气动态系统
6.
Greenwood Air Management Ltd.
绿林通风换气系统公司
7.
Test for Leakage and Venting of the Automobile s Fuel System;
汽车燃油系统的气密性和通气性检测
8.
The nerve gas will most likely be released into a ventilation unit.
神经毒气一般会通过通风系统释放
9.
The sentox nerve gas that was released into the air duct system contains a corrosive agent
神经毒气通过通风系统掺杂腐蚀物
10.
Control Simulation Trial on the Coal Ventilation Fuel Gas Turbine System
煤矿通风气燃气轮机系统控制试验仿真
11.
The crankcase ventilation system carries fresh air through the crankcase.
曲轴箱通风系统要携带新鲜的空气通过曲轴箱。
12.
GECOS (General Electric Comprehensive Operating System)
通用电气公司综合操作系统
13.
atmospheric gas-burner system
自动通风煤气燃烧器系统
14.
VIC heating, air-conditioning and ventilation systems
国际中心暖气、空调和通风系统
15.
Research of Adaptive Equalization in Atmosphere Communication System;
大气激光通信系统中的时域均衡研究
16.
Research of Turbo Codes in Atmosphere Communication System;
大气激光通信系统中Turbo码的研究
17.
Simulation and Design of ATP Subsystem in Atmospheric Laser Communication;
大气激光通信中ATP系统的仿真与设计
18.
Design of PPM for Laser Communication in Atmosphere;
大气激光通信PPM调制解调系统设计