Experiments were carried out in Great Britain and American on the impregnation of wood with vegetable tars and extracts. 在大不列顛和美州就進行過用植物焦油和提取物來浸漬木材的試驗。
The metallography samples fabricated by the vacuum impregnation of resin are introduced. 詳細介紹了真空浸漬樹脂法製備金相樣品的製備過程。
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