By using sealed devices,the environmental pollutions in the original experiment were avoided.
本文将“无机化学实验”中几个有关磷的实验装置及方法进行了改进 ,采用封闭装置 ,避免了原实验过程污染环境的缺点 ,并可对实验产物进行鉴定与利用 ,经多次重复实验 ,效果较好 ,达到了教学目的。
The procedure testing details was analyzed, a jack sealing device to substitute the original one and a pressure balancing device to alleviate the impacting pressure were selected, which can ensure the convenience and security in the single heat exchange tube pressure testing.
单根换热管因为容积小 ,压力试验时常采用串联焊接后试压的方法施工 ,且试验过程中易产生压力冲击 ,通过分析压力试验的实施过程 ,采用千斤顶密封装置和压力平衡装置以替代串联焊接和缓解压力冲击 ,确保了单根换热管的压力试验方便和安
Transalem closure
特兰斯埃伦封闭装置
Do not place the product in a separate enclosure unless proper ventilation is provided
除非通风良好，不要把产品放在独立的封闭装置中
Do not place the product in a separate enclosure unless proper ventilation are provided.
除非通风良好，不要把产品放在独立的封闭装置中。
closed temperature measuring device
封闭式温度测量装置
enclosed gearing
封闭式齿轮传动装置
A Closed Water-saving Equipment by Recycle Water in Chemistry Laboratorys;
一种化学实验室用封闭式循环节水装置
A Brief Discussion on Installation and Operation of Enclosed Bus Light Positive Pressure Equipment for Underground Plant
浅谈地下厂房封闭母线微正压装置的安装与运行
Valves should be installed with the disc in the closed or almost closed position. This will prevent damage to the disc sealing edge.
安装阀门时,蝶板应该处于关闭或几乎关闭的位置。这是为了防止蝶板密封装置受到损坏。
closed container mechanically ventilated
封闭式机械通风集装箱
sealing device [ballot box]
封箱装置〔投票箱〕
One end of the cable is permanently connected to the enclosed mercury switch and the entire assembly is encapsulated to form a completely watertight and impact resistant unit.
电缆的一端永久性连接在封闭的水银开关内,这个完整的密封总装形成完全不透水、抗撞击装置。
A device for increasing the humidity in a room, greenhouse, or other enclosure.
加湿器一种用于增加房间、温室或其它封闭空间内湿度的装置
a device incised to make an impression; used to secure a closing or to authenticate documents.
一种压入产生印痕的装置；用于保护封闭口，识别文件。
Thermostat: Device that detects temperature changes for the purpose of maintaining the temperature of an enclosed area essentially constant.
恒温器:测量温度变化以便保持封闭区域内温度基本恒定的装置。
All existing apartment house incinerators were to be closed or improved according to a specific timetable.
按照特定的时间表，封闭或改进所有公寓已有的家用焚化炉装置。
The previous owner blocked in most of the open fireplaces when central heating was installed.
以前的房主在中央暖气系统装置之后，封闭了大部分壁炉。
landing door closed detection device
层站门关闭监察装置
closing appliance for exterior ventilation outlet
外部通风出口关闭装置