The insects trapped in the fossilresin cast a new light on the history of the sub-continent, " he added."
树脂化石中困住的昆虫提供了关于次大陆历史的新线索。”他补充道。
2
Recently, resin leakage often occurs in condensate polishing system of fossil power unit, which has deteriorated the water vapour, corroded the pipeline and affected the operation of the equipment.