1·The ash and silica content of 21 species of commercial woods of Surinam have been quantitatively determined.
定量测定了21种苏里南商用木材的灰分及二氧化硅含量。
2·Third world countries including Jamaica surinam and Guyana supply almost90% of developed nation imports of bauxite.
第三世界国家包括牙买加、苏里南和圭亚那几乎提供了发达国家铝土矿进口的90%。
3·Third world countries including Jamaica, Surinam, and Guyana supply almost 90% of developed nation imports of bauxite.
第三世界国家包括牙买加、苏里南和圭亚那几乎提供了发达国家铝土矿进口的90%。
1·Third world countries including Jamaica surinam and Guyana supply almost90% of developed nation imports of bauxite.
第三世界国家包括牙买加、苏里南和圭亚那几乎提供了发达国家铝土矿进口的90%。
2·The ash and silica content of 21 species of commercial woods of Surinam have been quantitatively determined.
定量测定了21种苏里南商用木材的灰分及二氧化硅含量。