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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.
youdao
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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.
youdao