n.微孔

Microporosity in thermite weld joint consiste of blow hole and shrinkage cavities. 氧或硅含量過(guò)高形成氧化物或硅酸鹽;

Result is microporosity, second-phase precipitation and inclusions of intermetallic or nonmetallic compounds. 結(jié)果導(dǎo)致微孔、再生相沉淀和金屬和非金屬成分混雜。

By means of using a special aerated technology of micropore-making and stabilizing with compressed air to get high microporosity,and fine,uniform-d... 介紹了空壓制泡、穩(wěn)泡加氣工藝,微孔輕質(zhì)板材的性能,闡述了鐵鋁酸鹽水泥的特性及其對(duì)板材生產(chǎn)工藝和產(chǎn)品性能的影響。

In addition, several analytical methods frequently used for the calculation of surface area, pore diameter and microporosity have also been introduced. 本文針對(duì)氣體吸脫附分析技術(shù)之原理與測(cè)量方式進(jìn)行介紹，另外亦闡明幾種常用以計(jì)算孔面積、孔徑大小與微孔量等孔洞特性之?dāng)?shù)據(jù)分析方法。

The weathering of soft rock was systimatically analyzed through measuring its microsturcture, microporosity, macrofissure, and the physico chemical properties. 通過(guò)對(duì)軟巖風(fēng)化前后微結(jié)構(gòu)、微孔隙及宏觀裂隙和宏觀物理力學(xué)參數(shù)的測(cè)試對(duì)比，系統(tǒng)地研究了軟巖風(fēng)化的微觀和宏觀效應(yīng)。