valleyprinting砾壳斗
valleytile天沟瓦
valonia阀节喷嘴
valvegatingnozzles阀
valving阀调
VanderPauw'smethod范德伯斯法
vanadiumcompounds钒化合物
vanadiumyellow钒黄
vanefeeder叶轮饲机
vanillin香草精
vaporbarriersseebarriers,vapor汽障壁
vapordiffusion蒸汽扩散
vapordryingequipment蒸汽乾燥设备
vaporphasecleaningequipment汽相洗条设备
vaporphaseepitaxialgrowthsystem汽相磊晶生长系统
vapor-depositionpolymerization蒸汽凝积聚合
vapor-phaseacetyleneprocess气相乙炔方法
vapor-phasechromatographyseegaschromatography气相移差术 |
