low end低端； 低档lowadj.低的；少的；低落的；低声的；卑劣的；低等的adv.低地；低声地；低下地；廉价地n.低水平；低价；低谷v.哞哞叫low pressure air conditioning system低压空档统low-consumption and high-benefit低耗高效Low-density-parity-check codesLDPC码low head hydroelectric power station低水头发电厂,低水头水电厂low permeability sandstone reservoir低渗透砂岩油层low-frequency iron core inductance低频铁芯电感low temperature solid state reaction低温固相反应low end-tidal carbon dioxide limit末端二氧化碳涨落下限值low-tension regulating transformer低压调节变压器low temperature iron plating process低温镀铁工艺

1. Effect of BZ modification and heat treatment on microstructure and mechanical properties of white cast iron with low chromium was studied in this paper.
   研究了变质处理和热处理两种方法对低铬白口铸铁的组织及机械性能的综合影响。