The theory of seed suction performance of vibrational air suction tray seeder was analyzed in order to promote the exploitations and applications of precision seeders.
为了促进精量播种机的开发与应用，该文对振动气吸式穴盘播种机的吸种性能进行了理论分析。
The vibrational spectroscopic techniques (i. e. IR, Raman) were employed to investigate why titanium can obviously improve the electrochemical performance of spinel lithium manganese oxides.
还用红外和拉曼光谱技术研究了钛对尖晶石锂锰氧化物的电化学性能的改善作用。
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