例句與造句

1. The paper begins with the reclaiming and using of the remaining heat during the process of yielding the oil and in the electricity plant to study the application of heat pump ' s technology in the oil field and electricity plant . this paper introduces the development and classification of the heat pump , the elementary principle , evaluable target and the p - h chart of the mechanism compressive heat pump ; it points out the necessity to design the computer program of refrigeration medium ' s thermal character , offers the elementary equation , calculating formula , calculating method and the program frame to calculate the refrigeration medium ' s thermal character
   本文介紹了熱泵的發(fā)展、分類，機械壓縮式熱泵的基本原理、評價指標(biāo)及常用的p - h圖；指出了設(shè)計制冷劑的熱力性質(zhì)計算機程序的必要性，給出計算制冷劑熱力性質(zhì)的基本方程、計算公式、計算方法及程序框圖，編制了9種常用制冷劑性能參數(shù)計算程序，可直接用于熱泵系統(tǒng)cop及per值的計算。
2. It's difficult to find evaluable in a sentence. 用evaluable造句挺難的