To vent the gas in the airtight areas safely and effectively, our department adoptes pressuring ventilation and has gained very good impac.
为了安全、有效地排放密封区域的瓦斯,在华晋焦煤公司沙曲矿北风并区采用“压风法”,取得了非常好的效果,值得推广。
This paper analysizes the reason of coal well explosion,calculates the explosive limitiation of flammable gas,analysizes explosive fatalness after fire zone close down、Sorts of control technology of explosion and blunt are studied.
分析了煤矿矿井可燃气体发生爆炸的原因,对可燃性混合气体的爆炸极限进行了计算,分析了火区封闭后可燃气体爆炸的危险性,研究了各种燃烧及爆炸抑制技术。
INSPECTION FOR REAR SEAL AREA LEAKS
后密封区的泄漏检查
If the leakage occurs at the rear oil seal area, refer to the section, Inspection for Rear Seal Area Leak.
如果泄漏发生在后机油密封区，参看“后机油密封区泄漏的检查”一节。
If too much solder is use, it may flow past tube and clog seating area.
如果采用太多的焊料，则焊料可能流过管道并阻塞密封区域。
pressurizing window
密封封口(电缆), 气密口
weatherstripping,thresholds & seals
密封条，门槛及密封胶
a watertight compartment, joint, seal
水密室、 水密接合、水密封.
interstage gland
级间密封，级间汽封
To coat, pack, or seal with lute.
用封泥盖、包或密封
tighten up
密封, 拉紧, 拧紧
It has two stem sealing: one is stuffing box and another is toroidal sealing ring( O-ring).
本阀阀杆密封分为两种形式：一为填料密封；一为O型密封环密封。
Strict security measures shall be established for the airport controlled area, and the area shall be of a closed type and controlled separately.
机场控制区应当有严密的安全保卫措施，实行封闭式分区管理。
oil pressure test for tightness
油密试验油压密封试验
joint gasket- or packing- type, of laminated metal foil
层压金属箔密封或填密封式接合衬垫
the seal of the air-balancing cylinder adopts multi-stage seal;
气平衡缸密封部位采用多级密封装置 ;
Hermetic: Airtight sealing of an object.
全密封：一种对物体不透气的密封。
The Seal Structure Improvement of Multi-Seal Fuel Gas Separates
多密封燃气隔断闸阀密封结构的改进
An Improved Design on Seal Groove and Seal Ring of Spherical Plain Bearing
关节轴承密封槽及密封圈的设计改进
The concept of this self-sealing process broadens the likelihood of cap rocks with low permeability occurring in volcanic areas.
自封密过程这一概念使得火山区也可能出现渗透性能很低的盖层。