测定了选矿试验中大批量样品二氧化硅含量。
Silicon dioxide content of the multitudinous samples in the ore dressing test was assayed.
定量测定了21种苏里南商用木材的灰分及二氧化硅含量。
The ash and silica content of 21 species of commercial woods of Surinam have been quantitatively determined.
随着二氧化硅含量的增加，直径变细，纺锤形珠节结构增加。
With increasing of silica content, fibers diameter became fine and spindly beads increased.
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