例句與造句

1. A dynamical model of h2 fuel cell stack with water balance is developed in this paper for studying steady and dynamical performances of proton exchange membrane ( pem ) fuel cell stacks
   摘要提出和建立了包含水平衡的氫燃料電池堆的動態(tài)模型，用于研究質(zhì)子交換膜( pem )燃料電池堆的靜、動態(tài)性能。
2. A mathematical model for the anode of a direct methanol fuel cell ( dmfc ) considering the mass transport in the whole anode compartment and the proton exchange membrane ( pem ) , together with the kinetic and ohmic resistance effects through the catalyst layer is developed . the influences of key parameters on methanol crossover and anode performance are investigated
   對于dmfc的陽極，本文描述了甲醇和水在陽極及質(zhì)子交換膜（ pem ）中的傳遞過程、反應(yīng)動力學(xué)和歐姆阻抗效應(yīng)，建立陽極和pem的數(shù)學(xué)模型，并探討對甲醇擴散和陽極性能影響的主要因素。
3. It's difficult to find proton exchange membrane (pem) in a sentence. 用proton exchange membrane (pem)造句挺難的