vapour-reflux contacting

例句：

1. 1. The process of vapour-reflux contacting is crucial for the operation of the chemical reactor.
   蒸汽回流接触过程对于化学反应器的操作至关重要。
2. 2. During the vapour-reflux contacting stage, the reactants are mixed and heated to form a reaction product.
   在蒸汽回流接触阶段，反应物混合并加热以形成反应产物。
3. 3. The vapour-reflux contacting process has been optimized to improve efficiency and reduce costs.
   已优化的蒸汽回流接触过程以提高效率和降低成本。