因此，采用自行研制的高效乙炔化催化剂是降低生产成本的关键。
The highly active catalysts for ethynylation are the key to lower production cost.
煤等离子热解制乙炔工艺工程应用研究是该工艺产业化的重要方面。
The research on engineering application of producing acetylene through coal pyrolysis in plasma reactor is important for its industrialization.
电石作为煤炭清洁化的一个主要中间产品，广泛应用于合成苯、橡胶、聚氯乙烯、聚乙炔等有机化工产品。
Calcium carbide, widely applied in synthesis of organic chemical products, such as benzene, rubber, polyvinyl chloride, and polyacetylene, is a main intermediate product of clean coal utilization.
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