7、The results showed that recirculation fumigation under film can effectively improve airtightness of the warehouse and control stored grain insects.
11、The product is LSR O seal, which has better airtightness than elastomer and the other characters of high temperature resistant, anti-aging, anticorrosive, non-toxic and environmental protection.
3、Primary considerations were airtightness, thermal mass and high levels of insulation.
8、The container used at specified temperature and pressure condition has to meet the requirements of intensity and airtightness, while weld container can completely meet these requirements.
1、Because the good airtightness of our valve.
6、The principle of a composite test device for airtightness of automobile compartments and air volume of air conditioners was described.
2、A glass substrate convey airtightness box, including a lower box body, an upper boxing and an airtightness component.
10、At present, the technique of vacuum coating has been widely used in our country. But the airtightness of the vacuum coating equipment is poor.
9、By testing the airtightness of shallow silo with two kinds of roof structures, the results show that concrete roof silo is better than steel roof silo.
12、As long as the principle of airtightness in the combustion regions, in the connecting piping, and in the filter units is followed, the form, shape, and method of assembly is not important.
5、Plastics piping systems. Thermoplastics piping systems for soil and waste discharge. Test method for airtightness of joints.
4、Subsequently, an airtightness value of the enclosed space is calculated by taking into account the determined concentration modification rate.
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