Micrographics--Reflectance test target used in the test target for inspecting the quality of micrography of technical drawing
缩微摄影技术 用于“检验技术图纸缩微摄影质量测试标板”的反射率灰板;
Micrographics--Reflectance test target used in the test target for inspecting the quality of micrography of technical drawing
缩微摄影技术 用于“检验技术图纸缩微摄影质量测试标板”的反射率灰板;
target type flowmeter target meter
靶式流量计;
Micrographics--Reflectance test target used in the test target for inspecting the quality of micrography of technical drawing
缩微摄影技术 用于“检验技术图纸缩微摄影质量测试标板”的反射率灰板;
target type flowmeter target meter
靶式流量计;