分规范 meaning in English

seetional spocificationmultilayer printed boardsds

Optical fibre cables - indoor cables - sectional specification
光缆.室内光缆.分规范
Optical fibre cables - sectional specification - outdoor cables
光缆.分规范.户外电缆
Sectional specification : waveguide type dielectric resonators
分规范:波导型介电谐振器
Sectional specification - multilayer printed boards
多层印制板分规范
Sectional specification for field - portable optical microscopes
野外可携带光学显微镜的分规范

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