The paper gives a detailed introduction to the structure and working principle of YN type speediness soil and fertilizer nutrient measuring apparatus.
介绍了YN型土壤肥料养分测定仪的结构及工作原理。
The paper gives a detailed introduction to the structure and working principle of YN type speediness soil and fertilizer nutrient measuring apparatus.
介绍了YN型土壤肥料养分测定仪的结构及工作原理。
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