查询词典 off-peak

Experiment results indicate the HN derivatization method is not effective for test objects of complicated ingredients, such as gaba tea, germinated brown rice and germinated seed samples. We were unable to identify the GABA peak on the HPLC spectrum. When dealing with samples that contain large amount of amino acid, such as germinated brown rice and sprouted seeds, the PITC derivatization method is prone to disturbance and has the tendency to overestimate the GABA content. The OPA derivatization method effectively isolates the GABA peak of all test samples of this experiment. That its derivatization is simple and speedy makes it suitable for broader applications.

实验结果显示HN衍生法对於成分复杂的检品如茶汤、发芽玄米、发芽种子样品的分析效果皆不好，在HPLC图谱上无法辨识GABA peak；PITC衍生法对於含有大量蛋白质胺基酸的样品如发芽玄米、发芽种子则较易受干扰而可能高估GABA含量；OPA衍生法对於本实验所有样品中的GABA peak均有良好的分离效果，且衍生化过程简单快速是较建议广泛适用的检测方法。

Because Tianzhu Mountain peak around more than 40 blocks Qunfeng arch surround the ring, the peak of potential hidden people may not easily see each other, it also Tianzhu Mountain called "Buried Hill."

因为天柱山主峰周围有40多座群峰环拱簇拥着，主峰潜伏隐藏着让人不得轻易相见，因此，天柱山又叫作&潜山&。

Following, a experiment has been carried out, the incident waves with a frequency band of 200kHz-3 50kHz are used to the experiment, and a series of peak value-time curves are drawn each 10kHz, corresponding time are found through fitting peak value, thus the position of the defect is calculated accurately. The application of awl-shaped sensor head in the heat change water pipe experiment indicates that the ultrasonic guided waves may transmit nearly 50 meters in the pipe, which is not influenced by the elbows and makes it possible to test defects in long distance and large-scale. The water-load pipe experiment indicates that the displace and energy maybe leakage at the near-surface, which is significant for the further research.

而后，采用200kHz至350kHz频段的入射波进行了实验验证，并每隔10kHz绘出一条峰值一时间的曲线，通过拟合峰值点，找到对应的时间，从而准确的计算出了缺陷的所在；应用锥形探头的热交换水管的实验表明，超声导波可以在管道中传播了近50米的距离，且不受弯头的影响，从而使得长范围、大规模检测成为可能，水载管实验说明了离面位移和能量可能会发生泄漏的特性，为导波的深入研究和应用作了铺垫。

Really was the "clearly see the top of Castle Peak, Castle Peak top line of the boat," the mood.

真有&分明看见青山顶，船在青山顶上行&的意境。

The DIC δ〓C values of spring in Qixing cave have become gradually heavy from June, reach a peak in August and this peak also appears in Liangfeng cave in August.

七星洞地表泉水DIC的δ〓C值自6月份开始有逐渐偏重的趋势，到8月份达到一个不甚明显的峰，这个峰值在凉风洞的表层泉中也略有体现。

Results showed that the diurnal variation of the maximal yield of PS11 photo- chemistry in dark-adapted leaves F(subscript v/F under light stress was a double-peak curve, and the peak values were at 8:00 and 15:00, respectively.

结果表明：光胁迫下的烤烟幼苗叶片原初光化学效率F(下标 v/F的日变化为双峰曲线，峰值分别出现在08：00和15：00左右，初始荧光(F0)上升。

With a peak-peak of rectangular asymmetric waveform voltage up to 1 600 V, a frequency of 195.8 kHz, a duty cycle of 30% and a compenstaion voltage of-8.63 V, the acetone displacement is compensated and the sensor ability to separate ions is demonstrated by an experiment using the planar copper drift tube.

当方波非对称射频电压峰峰值为1 600 V，频率为195.8 kHz，占空比为30%，补偿电压为-8.63 V时，采用平板铜块迁移区实现了丙酮离子的位移补偿，实验结果验证了传感器的性能。

Voltage Source and Current Source, Thevenin Theory, Trouble Shooting, Characteristic Curve of Diode, Diode Models, Rectifier Circuits, Input Filtering Capacitor, Voltage Multiplier Circuits, Limiter and Clipper Circuits, DC Clampers and Peak-to-peak Detectors, Zener Diode, Zener Diode Rectifier, Photoelectric Devices, Collector-Emitter Junction, Transistor Characteristics of common-emitter, Base Bias, LED Dirver, Establishing a Stable Q-point, PNP Transistor Biasing, Transistor Biasing, Coupling and By-Pass Capacitors, AC Emitter Resistance, Common-Emitter Amplifier, Other Common-Emitter Amplifiers, Cascaded Common-Emitter Amplifiers, AC Load Line, Emitter Follower, Class B Push-pull Amplifiers, JFET Characteristic Curve, JFET Biasing, JFET Amplifier, VMOS Circuit, Differential Amplifier, Operational Amplifier, Non-inverting Feedback, Negative Feedback.

电子学实验( S0704)(1，1)/应用电子学实验( S0472)(1，1)电压源和电流源、戴维宁定理、故障排除、二极体特性曲线、二极体近似模型、整流电路、电容-输入型滤波器、倍压电路、限制器电路和峰值检测电路、直流定位器与峰对峰检测器、齐纳二极体、齐纳二极体整流器、光电元件、集射极接面、集极特性曲线、基极偏压、LED驱动器、建立一个稳定的工作点 Q 、 PNP 电晶体偏压、电晶体偏压、耦合及旁路电容、交流射极电阻、共射极放大器、其他 CE 放大器、串接共射极放大器、交流负载线、射极随耦器、 B 类推挽式放大器、 JFET 特性曲线、 JFET 偏压、 JFET 放大器、 VMOS 电路、差动放大器、运算放大器、非反向电压回授、负回授。

It is found that in both the polar cap and the auroral zone a F1 like peak of ionization appeared at 190km height during the main and recovery phases of the storm; while the normal F2 peak disappeared and great depletions of electron density occurred.

发现在磁暴主相和恢复相初期，极光椭圆和极盖区电离层都在大约 1 90km高度出现类似F1的峰，F2主峰完全消失，F区电子密度大幅度下降。

In the case of Li, the γ-peak (nitrate and nitrite species on surface) of NO desorption increases, the intermediate N〓O desorbs at higher temperature. In the case of Ce, the α-peak (species on the 〓 acidic sites) of NO desorption decreases, and N〓O desorbs at lower temperature.

对NO吸附在催化剂表面的TPD谱进行了分析，观察到催化剂中加入Li或Ce助剂后，NO的脱附峰面积，脱附峰形状都有明显的变化，Li的加入使NO脱附的γ峰(表面硝酸盐亚硝酸盐物种)明显增加，中间物N〓O脱附温度增高；Ce的加入使NO脱附的α峰减小，而N〓O的脱附温度降低。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。