ITU-T G.173 (03 19.93) (英) Transmission planning…….pdf
【精品主题班会团结合作篇】主题班会课件:与人合作共享快乐.ppt
JIS B422119.98 Milling cutters-Angle milling cutters.pdf
ETSI TS 126 404 V7.0.0 (20.07-06) Digital cellular telecommunications system....pdf
ITU-T J.96 (07 20.02) (英) Technical method for ensuring…….pdf
ITU-T E.115 (03 19.93) (英)Computerized information service for telephone…….pdf
【精品主题班会团结合作篇】主题班会课件:美丽人生.ppt
JIS B 670219.92 Dimensions relating to molds for plastics compression....pdf
JIS B 670119.92 Dimensions relating to molds for plastics injection....pdf
JIS B 659919.91 Veneer slicers-Test and inspection methods.pdf