Study on volume and velocity of stem sap flow of Haloxylon ammodendron by heat-pulse technique;
采用热脉冲法对梨树树干液流速度径向变化规律进行了系统研究。
In this paper the thermal pulse technique is discussed in detail theoretically and experimentally.
本文从理论上和实验上对热脉冲法进行了详细的讨论。
Arc ion plating or magnetron sputtering provides the best application condition for pulse technique.
电弧或溅射离子镀高的离化率为脉冲工艺提供了最好的应用条件。
A pulse technique is applied to kinetic study for disproportionation of toluene on mordenite catalysts.
本文系用脉冲他化色谱技术进行丝光沸石催化剂上甲苯歧化反应动力学的研究。
In order to improve short pulse laser drilling efficiency double-pulse technique is reported in this paper.
为了提高纳秒短脉冲激光微孔制备的加工效率，使用了一种新颖的双脉冲方法。
The electrochemical principles of manufacture of electrolytic manganese metal by the pulse technique is described.
分析了采用脉冲电解技术制取金属锰的电化学原理，通过试验确定了适宜工艺条件。
ABSTRACT the application of pulse technique on arc ion plating and magnetron sputtering is summarized in the article.
摘要本文综述了国内外脉冲工艺在电弧离子镀和磁控溅射中的应用。
Sound pulse technique is often used in the underwater acoustic measurement, but it has transients, so it can not be used in low frequencies.
脉冲声技术是一种很常用的水声测量技术，但由于脉冲声存在着瞬态过程，严重影响了它在低频下的使用。
The value measured by Penman-Monteith method is very close to that measured with whole-tree potometer and that measured by heat pulse technique with errors less than 2%.
微气象法中午蒸腾值十分接近整树容器法与热脉冲法，其误差小于2％。
The shortcomings of general pulse technique, tail gas technique and stopped-flow technique in catalytic research might be overcome by using pulse catalytic chromatograph branch-flow technique.
脉冲催化色谱分流技术克服了一般脉冲技术、尾气技术和断流技术等在催化研究方面的某些局限性，是一种改进了的微型脉冲催化色谱技术装置。
In other words, pulse width modulation is a modulation technique for generating variable width pulses to represent the amplitude of an input analog signal or wave.
或者换句话说，脉宽调制是一种调制技术，为发电可变脉冲宽度为代表的幅值输入模拟信号或波。
This paper describes an imperfect pulse injection stimulus-response technique to study the axial mixing in the extraction column.
本文以非理想脉冲注入的扰动-响应技术，进行萃取柱轴向混合的研究。
Pulse current technique was adopted in hard anodic oxidation of aluminum alloys.
提出将脉冲技术应用于铝合金硬质阳极氧化。
Pulse power supply with micro energy is a core technique for micro-EDM.
微能脉冲电源是微细电火花加工的一项关键技术。
Pulse compression technique includes two key techniques: the pulse compression signal generation and processing.
脉冲压缩技术包括脉压信号的产生和处理两个关键的技术。
Therefore, in order to satisfy the demand of the OTDM system, the technique of optical pulse compression must be adopted.
并带有一定的负啁啾，因而必须采用光脉冲压缩技术才能满足高速OTDM系统的要求。
Thus pulse shaping technique can be used not only shape the spectrum of the transmitted signal to increase the bandwidth efficiency but also to reduce its PAPR.
因此脉冲成形技术不仅能对传输信号进行频谱成形来提高系统的频带利用率，而且还可以减小信号的PAPR值。
Then, using the stationary false alarm and pulse accumulation technique could solve the detection problem of unresolved targets in a certain extent.
再利用恒虚警、脉冲积累等技术可以在一定程度上解决前面提到的不可分辨目标的检测问题。
This detector has adopted modulated light and 4 pulse synchronous demodulating technique. So the detecting reliability and sensitivity are improved greatly.
这种光电检测器采用了调制光和4脉冲同步解调技术，提高了光电检测的可靠性和灵敏度。
Random pulse width modulation technique can be used to distribute voltage harmonics over a wide frequency range and to realize the reduction of acoustic noise and vibration.
随机脉宽调制技术可以使逆变器输出电压的谐波成分均匀地分布在一个较宽的频率范围内，达到抑制噪声和机械振动的目的。
The Methodological investigation on the measurement of thickness of downhole casing with ultrasonic pulse echo technique is carried out both in theory and in experiments.
利用理论分析和实验模拟的方法研究了超声脉冲反射技术测量井下套管厚度的方法。
The selection of the initial shift register of M-sequence is a key technique in pulse compression waveform design whose pulse compression waveform must have low peak power and large compression ratio.
二相编码波形设计中初始移位寄存器的选择是个关键技术，它直接决定了信号波形在满足最小峰值功率下能否具有最大脉压比。
A novel random pulse width modulation technique based on small switch losses is proposed.
提出了一种基于最小开关损耗的随机脉宽调制技术。
In order to satisfy the quasi real-time requirement of generator PD online monitoring, an improved scale space filtering technique is proposed and applied in PD pulse extraction.
为了满足局部放电在线监测的在线准实时要求，提出了改进的尺度空间滤波算法，并将其应用于局部放电脉冲的提取。
The main construction and key technique of long pulse length hollow cathode plasma electron gun are presented.
给出长脉冲空心阴极等离子体电子枪结构与关键技术。
The laser echo acquiring and processing technique is a key technique in laser pulse imaging.
激光回波信号采集和处理技术是激光脉冲成像的关键技术。
The increase of image resolution can bring a brilliant prospects for the application of pulse discharge imaging technique in the engineering area.
成像清晰度的提高，为脉冲放电成像技术在工程上的应用奠定了基础。
A new optimal pulse width modulation (PWM) technique with unsymmetrical switching angles was introduced for high power applications.
针对大功率逆变器的应用介绍了一种基于不对称开关角的优化脉冲宽度调制方法。
This technique uses different time delay values of the LFM pulse to code the transmitted information, and uses time delay estimation technique to perform decoding.
该技术利用线性调频信号（LFM）矩形脉冲的时延值进行时延编码，在接收端采用时延估计技术进行时延解码。
The pulse Doppler(PD)radar technique in ground-based radar is mainly applied to detecting motive targets in strong clutter jamming circumstance.
地面雷达中的脉冲多普勒（PD）技术主要用于在强杂波背景下对动目标的检测。
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