| 序号 | 英文 | 音标 | 词性 | 中文 |
| | reducing gear | | | 减速齿轮[器], 自动传动轮(二轮) |
| | reducing gear box | | | 减速齿轮箱 |
| | reducing gear indicator | | | 减速齿轮示功器 |
| | reducing glass | | | 缩小透镜 |
| | reducing joint | | | 异径接合, 异径(管)接头, 缩径(管)接头 |
| | reducing knife | | | 切碎(装置的)切刀 |
| | reducing machine | | | 磨碎机, 粉碎机 |
| | reducing matter | | | 还原剂, 还原物质 |
| | reducing mechanism | | | 粉碎装置 |
| | reducing medium | | | 还原剂 |
| | reducing metal | | | 还原金属 |
| | reducing nipple | | | 变内径内螺纹接头, 异径管接头 |
| | reducing pass | | | 减径[开坯]孔型 |
| | reducing pipe coupling | | | 异径管箍， 异径管接头 |
| | reducing power | | | 消色力, 还原能力 |
| | reducing press | | | 缩口用压力机 |
| | reducing printer | | | 缩小(印象)仪 |
| | reducing property | | | 还原性(质) |
| | reducing reagent | | | 还原剂 |
| | reducing resistor | | | 减流电阻器 |
| | reducing rolls | | | 开坯轧辊 |
| | reducing screen | | | 减光屏 |
| | reducing slag | | | 还原渣 |
| | reducing smelting | | | 还原熔炼 |
| | reducing socket | | | 缩径承窝 |
| | reducing solution | | | 还原(性)溶液 |
| | reducing still | | | 轻质油蒸馏釜 |
| | reducing substances | | | 还原物质 |
| | reducing sugar | | | 还原(性)糖 |
| | reducing surface | | | [物]简约表面 |
| | reducing transformator | | | 降压变压器 |
| | reducing transitive grammar | | | 还原传递语法 |
| | reducing twin bend | | | 异径三通双弯接头 |
| | reducing twin ell | | | 异径三通双弯接头 |
| | reducing union | | | 异径接头, 异径活管接 |
| | reducing valve | | | 减压阀 |
| | reducing valve strain | | | 减压活门滤器 |
| | reducing valve strainer | | | 减压阀滤器 |
| | reducing zone | | | 还原带 |
| | reductant | ri5dQktEnt | n. | [化]还原剂 |
| | reductase | ri5dQkteis | n. | [生化]还原酶 |
| | reductio ad absurdum | ri5dQkFiEu Ad Eb5sE:dEm | | 反证法(说明某一命题的反面为不可能或荒谬, 以证明该命题为正确) |
| | reductio ad absurdum proof | | | [数]归谬证法 |
| | reduction | ri5dQkFEn | n. | 减少, 缩影, 变形, 缩减量, 约简 |
| | reduction activation | | | 还原活化(作用) |
| | reduction activator | | | 还原活化剂 |
| | reduction baffle | | | 还原隔板 |
| | reduction bleaching | | | 还原漂白 |
| | reduction box | | | 减速箱 |
| | reduction carrier | | | 还原载体 |
| | reduction case | | | 减速器箱体 |
| | reduction cell | | | 电解还原槽, 电解槽 |
| | reduction chamber | | | 减压室 |
| | reduction coefficient | | | 换算系数， 修正系数 |
| | reduction compasses | | | 比例规 |
| | reduction current | | | 还原电流 |
| | reduction discharge | | | 还原排放物 |
| | reduction division | | | 减数分裂 |
| | reduction factor | | | 换算系数, 简缩因数 |
| | reduction flour | | | 粉碎系统出来的面粉 |
| | reduction formula | | | 换算公式 |
| | reduction gear | | | 减速齿轮[器], 自动传动轮(二轮) |
| | reduction gear box | | | 减速齿轮箱 |
| | reduction gear housing | | | 减速齿轮箱 |
| | reduction glaze | | | 还原釉 |
| | reduction heat | | | 还原热 |
| | reduction inspection | | | 缩减检验 |
| | reduction kettle | | | 还原釜, 还原器 |
| | reduction kinetics | | | 还原动力学 |
| | reduction limiting reservoir | | | 减压限制风缸 |
| | reduction margin | | | 减价余地 |
| | reduction mechanism | | | 还原机理 |
| | reduction melting | | | 还原熔炼 |
| | reduction mill | | | 开坯[工作]机座, 冷轧板材轧机 |
| | reduction mold | | | 还原坩埚 |
| | reduction of centre | | | 归心计算 |
| | reduction of class | | | 降级 |
| | reduction of cost | | | 降低成本 |
| | reduction of fraction | | | 约分 |
| | reduction of fractions to a common denominator | | | 通分(母) |
| | reduction of fused salts | | | 熔盐电解还原 |
| | reduction plant | | | 还原车间, 还原设备, 冶炼厂, 鱼粉加工厂 |
| | reduction range | | | 压缩范围 |
| | reduction ratio | | | 减速比 |
| | reduction relay valve | | | 减压中继阀 |
| | reduction roaster | | | 还原焙烧炉 |
| | reduction roll | | | [冶]压延轧辊 |
| | reduction sagger | | | 还原箱 |
| | reduction screw | | | 螺旋还原反应器 |
| | reduction stock | | | 轧粉系统的产物 |
| | reduction surplus | | | 减资盈余 |
| | reduction to absurdity | | n. | 归谬法 |
| | reduction tube | | | 还原管 |
| | reduction type semiconductor | | | 还原型半导体 |
| | reduction vatting | | | 还原瓮染料法 |
| | reduction wave | | | 还原波 |
| | reductional disjunction | | | 减数离开 |
| | reductionism | ri5dQkFEnizm | n. | 简化论, 简化法 |
| | reductionto absurdity | | | 反证论法 |
| | reductive | ri5dQktiv | adj.；n. | adj. 减少的, 还原的；n. 还原剂 |
| | reductive Lie algebra | | | 约化李代数 |