The effect of PPF and DIF on plantlet growth of potato in vitro under photoautotrophic condition was investigated.
研究了光通量和昼夜温差对自养培养马铃薯试管苗生长的影响。
AIM: To investigate the stereoselective metabolism of propafenone (PPF) by human liver CYP3A4.
目的：研究普罗帕酮(PPF)经人肝cyp3a 4代谢的立体选择性。
By making use of MATLAB to build the system model, PPF and APF are put in the simulation respectively.
利用MATLAB软件在计算机平台内搭建系统模型，分别利用有源和无源两种方式对系统进行补偿。
Considering limitations of the passive power filter (PPF), a reform method of PPF for low voltage power grid was presented.
针对无源滤波器的缺陷，提出了一种低压电网无源滤波器改造方案。
Poly (propylene fumarate) (PPF) is an unsaturated linear polyester with fumarate double bonds that can be crosslinked in situ.
聚富马酸丙二醇酯(PPF)是一种不饱和线性聚酯，PPF结构上不饱和双键的存在使得其能发生原位交联。
Effects of polypropylene fiber (PPF) on properties of phosphate cement-based concrete, such as flowability, operable time, flexural and compressive strength were investigated.
主要研究了聚丙烯纤维(PPF)对磷酸盐混凝土性能如流动性、可操作时间、抗折和抗压强度的影响。
The methods of harmonic suppression were introduced, such as adopting passive power filter (PPF), active power filter (APF), hybrid filter and harmonic protective device (HPD).
介绍了谐波治理的方法，即采用无源滤波器、有源滤波器、混合型滤波器及谐波保护器，举例说明了谐波保护器的应用。
Hybrid active power filter combined by APF and PPF, learning from both their strong points to offset their weaknesses, can be applied for high power harmonic control and reactive power compensation.
由APF和PPF组合构成的混合型有源电力滤波器可使二者取长补短，实现大功率下谐波抑制和无功补偿。
Hybrid active power filter combined by APF and PPF, learning from both their strong points to offset their weaknesses, can be applied for high power harmonic control and reactive power compensation.
由APF和PPF组合构成的混合型有源电力滤波器可使二者取长补短，实现大功率下谐波抑制和无功补偿。
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