Cotton fibers were induced from cotton ovule callus cells by suspension culture, float culture or filter paper bridge culture.
用棉花胚珠切块诱导愈伤组织，经悬浮振荡培养、漂浮培养、滤纸桥法等方法诱导成纤维细胞。
In this paper a design method of half bridge dual buck inverters output filter based on hysteresis current control was presented.
该文研究了一种基于电流滞环控制的半桥双降压式逆变器输出滤波器的设计方法。
This paper will study the principle of depressing the ripple of full-bridge phase-shift converter by coupled inductor filter.
本文将研究采用互感滤波器来降低全桥移相开关变换器纹波的原理。
The paper introduces a multi-level H-bridge converter, which produces 18-step waveform according to required control method. The standard sine waveform can be gotten after passing through the filter.
介绍了一种多级H桥并联变换器，通过一定的控制方式使每个H桥变压器副边产生的波形叠加成18阶梯波，经滤波后可得到比较标准的正弦波。
The paper introduces a multi-level H-bridge converter, which produces 18-step waveform according to required control method. The standard sine waveform can be gotten after passing through the filter.
介绍了一种多级H桥并联变换器，通过一定的控制方式使每个H桥变压器副边产生的波形叠加成18阶梯波，经滤波后可得到比较标准的正弦波。
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