fh是什么意思?fh怎么发音?fh的解释和用法

小编由分享时间：2025-06-04 15:39:09

1、abbr.firehose 消防队;flathead （铆钉等的）扁平头;first half 上半（月或年）;fillister head 有槽凸圆头（螺钉）;

1、To study the different characteristics and changes of fetus ? hydronephrosis ( FH ), and prevent unnecessary induced abortion.

目的:研究胎儿肾积水的不同特点及转归, 防范不必要的中止妊娠.

2、FH-40 C light fraction hydrofining catalyst is developed by Fushun research Institute of Petroleum and Petrochemicals ( FRIPP ).

FH -40C 是抚顺石油化工研究院开发的轻质馏分油加氢精制催化剂.

3、FH composite fire retardant for PP tufting carpet using in back-coating latex have been presented.

研究开发了FH复合阻燃剂,用于背衬胶乳阻燃法阻燃丙纶簇绒地毯.

4、SNB , NP-FH , and SN-MP were increased by 1.56 ( P < 0.01 ), 2.66 ( P < 0.01 ) and 2.31 ( P < 0.01 ), respectively.

NP -FH 增加2.66 ( P<0.01 ), NA-PA 减少3.87 ( P<0.01 ),SN-MP增加2.31 ( P<0.01 ), 颌骨间矢状和垂直关系的不调得到明显改善.

5、Spread-frequency communication is a new kind of techniques one of which is Frequency-hopping ( FH ) .

扩展频谱通信是一种新的通信方式.跳频通信是扩展频谱通信中的一种.

6、FH-OFDM is a technology that combines frequency-hopping ( FH ) and Orthogonal Frequency Division Multiplexing ( OFDM ) .

跳频 - 正交频分复用系统是一种把跳频通信和正交频分复用相结合的技术.

7、It inherits the anti multipath fading ability of OFDM systems and anti-interference of FH technology.

它同时兼有正交频分复用系统能有效对抗多径衰落和跳频技术抗干扰性能好的优点.

8、The simulation results show that the algorithm meets the requirements of FH communication systems.

仿真结果表明,该算法满足跳频通信系统的要求.

9、The synchronization system of Frequency-Hopping ( FH ) station requires well anti-jamming and security performance and quick synchronization.

跳频电台同步系统要求具有良好的抗干扰性能和保密性能,同时达到快速同步.

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