PV016R1K1AYN100
PV016R1K1T1NMMC
PV016R1L1T1NFDS
PV016R1K1T1NELB
PV016R1K1T1NECC
PV016R1K1T1NFFD
PV016R1K1T1NFRC
PV016R1K1T1N001
PV016R1K1T1N100
PV016R1K1T1NFDS
PV016R1K1T1NFR1
PV016R1K1T1NFHS
PV016R1K1T1NMM1
PV016R1K1T1NMRC
PV016R1K1T1NFWS
PV016R1K1T1NFF1
PV020R1K1T1N001
PV020R1K1T1N100
PV020R1K1T1NFDS
PV020R1K1T1NFR1
PV020R1K1T1NFHS
PV020R1K1T1NMMC
PV020R1K1T1NMM1
PV020R1K1T1NMRC
PV020R1K1T1NFWS
PV020R1K1T1NFRC
PV020R1K1T1NFF1
PV020R1K1T1NHLC
PV020R1K1T1WMM1
PV020R1K1T1NBLC
PV020R1K1T1NFRL
PV020L1K1T1NFWS
PV020R1K4T1NFR1
PV020R1K1AYNMMC
PV020R1K8T1VMMC
PV020R1K1T1NMR1
PV020R1K1T1NFRZ
PV020R1K4T1NFHS
PV020R1K1A1NMMC
PV020R1K1T1NMMK
PV020R1K1T1NKLC
PV020R1K1T1NMF1
PV020R1K1T1WFDS
PV020R1K1T1WFR1
PV020R1K1T1WMMC
PV020R1K1T1NMRZ
PV020R1K1T1WMRC
PV020R1K1T1NF
PV020R1K1T1NFFP
PV020R1K1JHNMMC
PV020R1K8T1NFWS
PV020R1K1AYNMRZ
PV020R1K1T1VMMC
PV020R1K1T1WMR1
PV020R1K4T1NMR1
PV020R1K1T1NHCC
PV020R9K1T1NMMC
PV020R1K8T1NMMC
PV020R1K8T1N001
PV020R1K1T1NFFC
PV020R1K4T1NMMC
PV020R1L1T1NMMC
PV020L1K1T1NMMC
PV020R1K1S1NFWS
PV020R1K1T1NGLC
PV020R1K1T1NMRK
PV020R1K1T1VFDS
PV023R1K1T1N001
PV023R1K1T1N100
PV023R1K1T1NFDS
PV023R1K1T1NFR1
PV023R1K1T1NFHS
PV023R1K1T1NMMC
PV023R1K1T1NMM1
PV023R1K1T1NMRC
PV023R1K1T1NFWS
PV023R1K1T1NFRC
PV023R1D1T1NMMC
PV023R1D1T1NUPR
PV023R1D3T1NMMW
PV023R1E1T1NMFC
PV023R1E1T1NUPR
PV023R1K1AYNMMC
PV023R1K1AYNMMD
PV023R1K1AYNMMW
PV023R1K1AYNMRC
PV023R1K1AYNMR1
PV023R1K1A1NECC
PV023R1K1T1NCCC
PV023R1K1T1NCLC
PV023R1K1T1NDCC
PV023R1K1T1NDCD
PV023R1K1T1NDLC
PV023R1K1T1NDLD
PV023R1K1T1NDL1
PV023R1E1T1NGLC
PV023R1K8T1VFHS
PV023R1K1A1NFWS
PV023R1L1T1NFRC
PV023R1L1T1NCLC
PV023R1K1T1NBCC
PV023R1K1T1NF
另外一项与光有关的鉴定因素是折射率，即光在空气中的传播速度与在翡翠中的传播速度之比。每种宝石都有着对应的折射率，翡翠的折射率在1.650-1.670，检测人员可以通过折射仪进行无损、快速、准确地测定。随着珠宝玉石鉴定技术的发展，检测仪器越来越精密和准确。前文提到的宝石显微镜就是目前宝石鉴定实验室不可或缺的仪器设备，无论是翡翠表面还是内部特征都可以一目了然。对于天然宝石与人工合成宝石、宝石之间的区分，宝石显微镜起到了很好的作用。
PV023R1K1T1NECC
PV023R1K1T1NELC
PV023R1K1T1NEL1
PV023R1K1T1NGCC
PV023R1K1T1NGLC
PV023R1K1T1NGL1
PV023R1K1T1NMFC
PV023R1K1T1NMFW
PV023R1K1T1NMF1
PV023R1K1T1NMMD
PV023R1K1T1NMMW
PV023R1K1T1NMRD
PV023R1K1T1NMR1
PV023R1K1T1NUPD
PV023R1K1T1NUPE
PV023R1K1T1NMMK
PV023R1K1AYNMRZ
PV023R1K1T1WFR1
对于弹簧关闭式阀门，膜片上没有压力。对于双动活塞式执行机构，活塞的一侧应该没有任何压力。为确保在关闭设置时没有任何反向压力，可以将阀门打开的起始点设定在4.1至4.2mA之间。检查阀门打开，按粗调(Coarse)上箭头按钮，从4.mA开始调节。每按一次粗调(Coarse)上箭头按钮，电流增大.1mA。应调节阀门器的调零功能，将阀门设置为相应的关闭模式。为了检查阀门的全开位置——称为跨距位置检查，利用范围(Range)按钮将输出电流调节为2mA，并等待阀门稳定。
