perkin-elmerCOCA¹⁰⁴²⁵⁹BNC⁷⁵⁰⁵³ 基本例句 🌏珀金埃尔默公司；铂金埃尔默；珀金埃尔默有限公司 Perkin-Elmer It turned out that Perkin-Elmer, which was probably the best optical manufacturer in America at that time, had built the primary mirror for this telescope. 结果事实是，当时美国最优秀的,光学部件制造商，为这个望远镜制造主镜。 open.163.com