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树木分泌物
释义
树木分泌物
Encyclopedia
农学
树木分泌物
释
tree exudate; tree secreta
树木分泌物
活立木的枝干、叶子、花朵、果实、根系等不同部位在生长过程中自然产生和受刺激产生的气体、液体或固体状物质,和以这些部位及其汁液为食的寄生生物所产生的代谢物或排泄物。通常指具有可收集和加工利用价值的物质。
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frequency locking
frequency-locking
frequency matching
frequency measurement
frequency measuring equipment
frequency meter
frequency meter, frequency counter
frequency method
frequency mixing
frequency-modulated cyclotron
frequency modulated oscillator
frequency modulated wave
frequency modulation
frequency modulation and control
frequency modulation and demodulation
frequency modulation, FM
frequency modulation laser
frequency-modulation laser interferometry
frequency modulation of hydro-generator unit
frequency modulation radar
frequency modulation radio
frequency modulation screening
frequency modulator
frequency multiplication
frequency multiplier
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