例句與造句

1. Industrial heating equipment . safety of steam or superheated steam generators permanently manned or not . part 4 : specific requirements for commercial gas - fuelled installations
   工業(yè)加熱設(shè)備.固定人工操作或無人操作的蒸汽或過熱蒸汽發(fā)生器的安全性.第4部分:商用燃氣設(shè)備的特定要求
2. This paper introduces the new approach of biogas usage abroad : upgrading the biogas by purification and concentration , it could become high calorie gas fuel as a direct substitute for natural gas , and used in natural gas - fueled equipment , vehicles ( ngvs ) , and the related
   摘要本文介紹了當前國內(nèi)外沼氣技術(shù)應用的動態(tài)：利用濃縮凈化技術(shù)把沼氣改進成高熱值的生物質(zhì)甲烷，并將其用到天然氣應用的相關(guān)領(lǐng)域，可為中國沼氣應用的發(fā)展提供一些借鑒和思考。
3. It's difficult to find gas-fuel in a sentence. 用gas-fuel造句挺難的