以半成熟椰子果皮为材料，采用常规方法测定了半成熟椰子果皮的粗灰分、钙、总磷的含量。
As material , adopt routine method determine half ripe Co cos nucifer L thick ash content , calcium , total content of phosphorus of peel wi th half ripe Cocos nucifer L peel.
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.
测定了部分试样的灰分含量。
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