FEF ( Forced Expiratory Flow Rate) was measured in 92 smokers without respiratory symptom and 78 healthy non-smokers.

1、

There was no difference in FEV 1, FEF 50 between slight asthma group and remission group;

与缓解组第1秒用力呼气流量（FEV1）、50%肺活量时最大呼气流量（FEF50）比较，轻度哮喘组无统计学意义（P0.05）；

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2、

Study on Structure of Surface Modified FeS Nanoparticles

表面改性FeS纳米微粒的结构表征

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3、

Properties of Cu/ FeS Composites Improved via Hot Extrusion Deformation

热挤压变形改善Cu/FeS复合材料的性能

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4、

Research on the stimulation pattern which is based on FES cycling train

基于FES cycling训练的刺激模式的设计与研究

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5、

Study on Dynamic Recrystallization Behavior and Performance of FeS/ Cu Composites

FeS/Cu材料动态再结晶行为与性能研究

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6、

Because of this, precise control is quite difficult around the trimmed position and as you move the stick you will suddenly feel the FFB kick in.

因此，精确控制在被整理的位置附近是相当困难的，并且，因为您移动棍子您将突然感觉FFB起动。

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7、

After 20 carbonation/ regeneration cycles in the FFB, the sorbent sorption capacity has decreased sharply.

吸附剂在FFB上20次吸附/再生循环之后，吸附剂转化率出现明显下降。

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8、

HSE is a kind of Internet possessing control function. The flexible function block ( FFB) is the special function of HSE technology.

HSE是一种具有控制功能的Internet，而柔性功能块（FFB）是HSE技术的独特功能。

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9、

FFB algorithm domain is presented to manage FFB instance for the realization of FFB dynamic instantiation.

同时使用柔性块算法域对象管理柔性块，实现柔性块动态实例化。

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10、

Study on Anti-Jamming Performance of FFH/ MFSK System

FFH/MFSK系统抗干扰性能研究

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11、

Secondly, the multiple access interference problem in FFH/ MFSK system is analyzed.

然后，分析了FFH/MFSK通信系统中存在的多址干扰问题。

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12、

FFT-based Detection of Existence of Synchronization Signal for FFH System

基于FFT的快速跳频同步信号存在性检测

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13、

A New ALE Calling Method In FFH/ FSK System

短波快速跳频系统下新的ALE呼叫方法

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14、

Research of Communication Technology Using FFH/ DS Hybrid Spread Spectrum

FFH/DS混合扩频体制通信技术研究

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15、

FFH system is an important spread-spectrum system, which has excellent anti-interference capacity and causes great attention in the research field of military communication.

作为扩频通信体制中的一种重要类型，快速跳频系统因其出色的抗干扰、抗截获和抗人为阻塞能力，在当前军事通信研究领域引起广泛关注。

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16、

The Soft-decision and Erasure Decoding Method in FFH Systems

软判决与消去解码方法在快速跳频系统中的应用

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17、

Objective It is to explore the prognostic value of fetus Fibronectin ( fFN), length of cervix uteri and formulation of cervix infundibulum detected by vagina sonography for premature delivery.

目的探讨检测早产高危孕妇宫颈分泌物中胎儿纤维连结蛋白（fFN），阴道超声检查宫颈长度、宫颈漏斗形成情况预测早产的价值。

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18、

Objective To study the relationship of fetal fibronectin ( FFN), Bacteria vaginosis ( BV) and chorioamnionitis. To evaluate the diagnostic value of FFN for chorioamnionitis.

目的通过检测胎儿纤连蛋白（FFN）研究细菌性阴道病和绒毛膜羊膜炎的关系，为产前早期诊断绒毛膜羊膜炎提供新方法。

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19、

The experiment showed that the baking effect was good when FFN was 91~ 158 s and the comprehensive baking effect was the optimum when FFN was ( 91 s).

实验表明：FFN值的范围在91~158s时，烘焙效果较好，FFN值91s时，综合烘焙效果达到最佳。

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20、

Combining the FFN determination with Bishop mark could provide the evidence of reliability for the induced labor by Misoprostol in late trimester of pregnancy clinically.

应用FFN测定结合Bishop评分，为临床确定使用米索晚期妊娠引产的安全性提供依据。

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