共 50 条
- [33] DOUBLE-DUTY MULTIVIBRATOR GIVES COMPLEMENTARY OUTPUTS [J]. ELECTRONICS, 1972, 45 (13): : 92 - &
- [34] Double-duty actions: seizing programme and policy opportunities to address malnutrition in all its forms [J]. LANCET, 2020, 395 (10218): : 142 - 155
- [35] Malnutrition double burden [J]. BULLETIN OF THE WORLD HEALTH ORGANIZATION, 2018, 96 (12) : 801 - 801
- [36] DOUBLE-DUTY VALVE HELPS LAND AND STOP PLANE [J]. HYDRAULICS & PNEUMATICS, 1972, 25 (02): : 67 - &
- [37] AIR VALVES DO DOUBLE-DUTY IN STRAPPING MACHINE [J]. HYDRAULICS & PNEUMATICS, 1975, 28 (03): : 80 - 83