例句與用法

1. due to variation of operation conditions, it's not easy task to acquire batch process model, which lead to difficulty in implementing quality control strategies . so modeling process through identification is always a hotspot in control and monitoring field
   但由于工作條件不斷變化，間歇過程系統(tǒng)的數(shù)學(xué)模型發(fā)生變化，使得質(zhì)量先進控制策略實施面臨較大困難，所以通過辨識方法得到系統(tǒng)的模型一直是控制和故障診斷領(lǐng)域研究的熱點。
2. multi-product and multi-purpose batch process model with petri net was addressed for a review of history . however, the petri net describing real processes usually tends to be very complex and extremely large . to circumvent this situation, some extensions such as abstract and hierarchical methods were proposed
   本文探討并總結(jié)了多產(chǎn)品和多目的批處理生產(chǎn)過程的賦時petri網(wǎng)模型，為改進petri網(wǎng)描述節(jié)點過多的缺點，利用抽象和層次模擬等技術(shù)對其進行簡化。