常見例句雙語例句But the existing process for n-butane isomerization can't avoid corrosion and pollution. So, exploration of environment friendly process is in need.而現(xiàn)有的正丁烷異搆化工藝難以避免設備腐蝕、環(huán)境汙染的缺點，因此需要開發(fā)環(huán)境友好的新工藝。 返回 butane isomerization process