幌筵岛最近一次火山活动是发生在2008年奇库拉·奇基锥顶，地处沿岛海岸北部，画面中上侧。
The most recent volcanic activity on Paramushir island occurred in 2008 at the Chikurachki cone located along the northern coastline of the island at image top center.
本文对树脂基复合材料双锥防热套的原材料选择和成型工艺进行了研究。
This paper discusses the raw materials and process technology of the double cone ablative shield made from resin matrix composites.
研究由失效磷酸基抛光液直接制备纳米锥冰晶石新工艺。
A novel technology on direct preparation of nanometer chiolite from expired phosphoric acid-based polishing agent is investigated.
研究由失效磷酸基抛光液直接制备纳米锥冰晶石新工艺。
A novel technology on direct preparation of nanometer chiolite from expired phosphoric acid-based polishing agent is investigated.
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