例句與造句

1. Examinations of steady status and analysis of dynamic experiments have been conducted on band - tube evaporator and parallel - flow condenser using r134a refrigerant . the steady examination show that the model error was under the allowable error , the inlet mass and enthalpy disturb experiments indicate that the subsection model , be good at reflecting the change of parameters of the heat exchanger , accord with the basic principle of thermodynamics theory and the actual work status . hence , the subsection simulation model research has important benefits both on theory and engineering application
   在進行仿真試驗時，以使用r134a作制冷劑的管帶式蒸發器和平行流式冷凝器為對象，完成了穩態仿真計算、試驗和動態仿真分析，穩態計算結果和試驗數據對比表明，其誤差在允許范圍內；進口質量和焓值的擾動試驗結果表明：本文所建的區段式換熱器仿真模型，能很好的反映換熱器性能參數的動態變化，與系統熱動力學理論和冷凝器、蒸發器的實際工作過程基本一致。
2. It's difficult to find parallel-flow condenser in a sentence. 用parallel-flow condenser造句挺難的