小气孔 meaning in English
spilehole
Examples
- When a leaf is looked at under a microscope , it is seen to have thousands of little breathing pores
在显微镜下观察一片树叶时,可以看见数千个小气孔。 - The analysis of microstructure of samples showed that the grain of tio2 were very small under 700 , the distance of grain became small with temperature increasing , the rate and size of pore was decreasing . the relative density of sample at 900 was 97 % and the grain size of sintered body was about 200nm . when the temperature exceeded 1100 , the grain size of body grew up several times ( > 2 m )
Tio _ 2烧结体sem显微形貌分析表明:低温( 700 )时坯体内颗粒无明显长大,烧结体致密度不高( 80 )晶粒间距随温度升高而变小,气孔率也随之降低,气孔尺寸变小;当温度超过900时,晶粒间连接紧密,烧结体内出现大量絮状物质,致密度大幅度提高,达97以上,小气孔已聚集成大孔洞且分布均匀,晶粒长大不明显( 200nm左右) ;当温度超过1100时,烧结体致密度有所提高,但晶粒尺寸出现异常长大,长大了十几倍(达2 m以上) 。