The phosphorus acquisition characteristics were studied in wheat varieties with different P efficiencies under Pi-sufficient and Pi-deficient conditions.
在丰磷、缺磷条件下，对不同磷效率小麦品种的磷吸收特性进行研究。
Targeting at data acquisition characteristics of vibration signals of rotating machinery, a new rotor orbit purification method using mathematical morphology filters is proposed.
针对旋转机械振动信号数据采集的特点，提出了用数学形态滤波器实现轴心轨迹提纯的新方法。
Common characteristics: self service customer acquisition, critical mass, runaway user growth, winner take all markets, complex ux, network effects, typically create new ways for people to interact.
共同特征：自助式服务，自然获取用户，达到网络效应的临界质量，失控的用户增长速度，赢家通吃的市场环境，复杂的用户体验，网络效应，以创造新的用户社交互动方式为典型。
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