1.
The Resistance Gene Frequency to Cry1Ac Toxin in Helicoverpa Armigera Populations Collected from Bt Cotton Planting Region of Northern China;
Bt棉花种植区棉铃虫种群对Cry1Ac蛋白抗性频率分析
2.
Analysis of the Influence That inside and outside Feedback Loop Reactive Element Has on Frequency Response;
反馈环内外电抗元件对频率特性的影响分析
3.
Study on electrical impedance of dentin,enamel and occlusal caries against alternating current of multiple frequencies in vitro
牙体硬组织多频率电阻抗性体外比较实验研究
4.
Study of countermeasures to deceptive jamming using random linear modulation frequency ratio SAR
随机线性调频斜率SAR抗欺骗干扰方法研究
5.
Frequency selection anti-jamming technique
频率选择抗干扰技术
6.
impedance respiratory frequency transducer/sensor
阻抗式呼吸频率传感器
7.
impedance change frequency test
电阻抗变换频率试验
8.
frequency response characteristics
频率响应特性（图）
9.
full power response
最大功率输出频率特性
10.
Studies on Frequency of Resistance Allele to Transgenic Bt Cotton in Field Helicoverpa Armigera (H(?)ber) and Its Monitoring Method;
棉铃虫对转Bt基因棉的抗性等位基因频率及其监测方法研究
11.
Detection of resistance allele freguency to Bacillus thuringiensis toxin from transgenic Bt cotton in field cotton bollworm and establishment of a new method for resistance detection;
检测棉铃虫对Bt基因的抗性等位基因频率及建立新的检测方法
12.
Study on Relationship of kdr (Knockdown Resistance, kdr) of Blattella Germanica to Permethrin with kdr Gene Frequency;
德国小蠊对氯菊酯击倒抗性与基因频率关系的研究
13.
Effects of selection by several insecticides on resistance levels and kdr allele frequency of housefly,Musca domestica(Diptera:Muscidae)
不同杀虫剂选育对家蝇抗药性水平及kdr基因频率的影响
14.
A miniaturized frequency selective surface with excellent center frequency stability
高频率稳定性的小型化频率选择表面
15.
bilinear frequency characteristic displaying instrument
双线性频率特性显示仪
16.
narrow-band charactascope
窄带频率特性观测器
17.
Gaussian amplifier
高斯频率特性放大器
18.
insertion loss versus frequency characteristic
插入损耗－频率特性曲线