平(Ping)晶(Jing),平(Ping)行(Xing)平(Ping)晶(Jing),光(Guang)学(Xue)平(Ping)面(Mian)平(Ping)晶(Jing),适(Shi)用(Yong)于(Yu)光(Guang)学(Xue)加(Jia)工(Gong)厂(Chang)、(?)厂(Chang)矿(Kuang)企(Qi)业(Ye)计(Ji)量(Liang)室(Shi)、(?)精(Jing)密(Mi)加(Jia)工(Gong)车(Che)间(Jian)、(?)阀(Fa)门(Men)密(Mi)封(Feng)面(Mian)现(Xian)场(Chang)检(Jian)测(Ce)使(Shi)用(Yong),(?)也(Ye)适(Shi)用(Yong)于(Yu)高(Gao)等(Deng)院(Yuan)校(Xiao)、(?)科(Ke)学(Xue)研(Yan)究(Jiu)等(Deng)单(Dan)位(Wei)做(Zuo)平(Ping)面(Mian)度(Du)等(Deng)检(Jian)测(Ce)。(?)