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育林基金
为保证森林采伐迹地及时更新和有计划地发展国营和集体造林事业,不断扩大森林资源而建立的专项基金。
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magnetic rotation
magnetics
magnetic sail propulsion
magnetic saturation
magnetic saturation device/magnetic saturation choke
magnetic scalar potential
magnetic scattering
magnetic screen
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magnetic screening, magnetic shielding
magnetic screening mass
magnetic sector type mass spectrometer
magnetic sector-type mass spectrometer
magnetic semiconductor
magnetic semiconductors
magnetic sensor
magnetic separation
magnetic separation column
magnetic separation equipment
magnetic separation of chromite
magnetic separation of hematite and limonite
magnetic separation of iron ores
magnetic separation of iron ore with rare earth and niobium minerals
magnetic separation of magnetite
magnetic separation of manganese ores
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