plf

The application of PLF - ⅰ motor spray valve in 30 m ~ 3 polymerizer

PLF-Ⅰ型电动喷淋阀在30m~3聚合釜中的应用

Because there is limitation in calculating load flow by using determinate method , this paper introduce probabilistic load flow ( PLF ) to analyze distribution system .

确定性潮流计算在反映配电网运行时的波动情况时存在着缺陷，引入了概率潮流计算理论进行配电网潮流分析。

The rate of excellent and good together was 93.3 % in interbody fusion group and 88.9 % in the PLF group ( P > 0.05 ) .

椎间植骨组优良率93.3%，横突间植骨组优良率88.9%，两组无显著性差异（P>0.05）。

In the two groups , the chemotherapy regimen was PLF ( Cisplatin , Leucovorin and 5-Fluorouracil ) .

两组化疗均采用PLF（DDP、CF、5FU）方案。

Objective To investigate the effect of placental isoferritin ( PLF ) activation on pathogenesis of pre-eclampsia and intrauterine growth retardation and its earlier predictive value .

目的探讨血浆胎盘异铁蛋白（PLF）在妊娠高血压综合征和胎儿生长迟缓发病机制中的作用及其早期预测价值。

Conclusion The decrease of plasma PLF levels at earlier third trimester was associated with IUGR and pre-eclampsia , and the endothelial cell damage may be one of its mechanisms .

结论血浆胎盘异铁蛋白水平的降低与胎儿生长迟缓和妊高征的发生有密切关系，血管内皮细胞损伤可能是其作用机制之一。

Objective To study the clinical outcomes of posterior lumbar interbody fusion ( PLIF ) with and without posterolateral lumbar fusion ( PLF ) in treatment of degenerative lumbar disease .

目的：比较后路椎体间融合（PLIF）联合后外侧融合（PLF）与单纯PLIF治疗腰椎退行性疾病的疗效。

ObjectiveTo compare biomechanical effects of the posterolateral fusion ( PLF ) and posterior lumbar interbody fusion ( PLIF ) with pedicle screw fixation for various spinal instabilities .

目的比较在失稳腰椎使用椎弓根钉固定的侧后方融合和经后路椎体间融合的生物力学效果。

The fifty two percent of hybridized metaphases exhibited silver grains at the terminal region of long arm of chromosome 2.The result showed that the PLF gene is located at 2q 12 .

52%（26／50）的分裂相在第2号染色体具银粒分布，实验结果表明：PLF基因定位于猪2号染色体2q12区域。

[ Method ] Eighty-three elderly patients with severe lumbar stenosis were treated with circumferential fusion through one-stage posterior approach ( PLIF + PLF ) from November 2001 to May 2004 at author 's department .

[方法]2001年11月~2004年5月，采用后路腰椎间融合（PLIF）联合后外侧融合（PLF）的环周融合术治疗老年人腰椎管狭窄症83例。

Objective : ( 1 ) to establish animal models of anterior lumbar interbody ( ALIF ), 360 ° fusion ( 360 ° F ) and posterolateral lumbar fusion ( PLF ) for biomechanical study .

目的：（1）建立前路椎体间融合（ALIF），360°融合（360°F），后外侧融合（PLF）的动物模型。