例句與造句

1. Aiming at the weakness of electric - automation control system in combination reaction product line of chemical industry , this paper detailedly introductes how to reconstruct the former system successfully by applying the advanced plc , inverter , fieldbus and hmi , how to get to higher demand of producing technics and how to acquire better technique and economic benefit
   摘要針對化工化合生產(chǎn)線電氣自動化控制系統(tǒng)的缺點，詳細介紹了運用先進的plc 、變頻器、現(xiàn)場總線及hmi （人機界面）技術，對老系統(tǒng)進行成功的改造，達到了較高的生產(chǎn)工藝要求，并取得了良好的技術、經(jīng)濟效益。
2. It's difficult to find combination reaction in a sentence. 用combination reaction造句挺難的