1990资源列表
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[国外标准] BS EN 55013-1990 A12﹢A13﹢A14 Limits and methods of measuremEN t of radio disturbance characteristics
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[国外标准] EN 300 067-1990 Radio Equipment and Systems - Radiotelex equipment operating in the maritime MFHF Se
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[国外标准] SAE J2129-1990 GUIDELINES FOR REQUESTS RECEIVED FROM OUTSIDE SOURCES FOR THE CONAG COUNCIL TO ORIGIN
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[国外标准] SAE J1941-1990 COOLANT CONCENTRATE (LOW SILICATE, ETHYLENE GLYCOL TYPE REQUIRING AN INITIAL CHARGE O