本文利用流体动力学模型，得到球对称装药爆破近区的自模拟解。
By applying the hydraulic model, the self-simulation solution of the spherical charge blasting at the close zone has been obtained.
通过对计算结果的分析，在理论上说明了线源频率域近区测深的可行性。
It shows in theory that the frequency domain sounding in near zone of the line current source is possible.
在时域中，磁源近区瞬变场的时间特性取决于场源所含低频谱的分数幂。
In time domain on the near zone of vertical magnetic source, the transient field form is decided by fractional power of the angular frequencies for field source.
用水力实验方法研究了明渠水流中园形污水射流近区扩散与混合的特性。
The characteristics of wastewater round jet into open channel flow and its mixing and diffusing in the near-field were investigated by means of a laboratory experiment.
本文分析了在断路器断口间并联电容对开断近区故障瞬恢复电压的影响。
This paper deals with the TRV produced by breaking a kilomitre fault with a circuit breaker on condition that some condensers are connceted with the breaks in parallel.
不论是中部浅孔爆破，还是大坝近区岩体开挖，其振动观测结果总体合理。
The observation result of vibration is rational either in middle shallow blasting or in rock excavation near the dam.
本文对频率域无限长线源近区（过渡区）测深的理论基础进行了探索性研究。
The preliminary research result of electromagnetic prospecting with the near field(transition region) of infinite-length line source in frequency domain is presented in this paper.
对两种测量光纤折射半剖面的方法：干涉显微镜法和近区场法，进行了评价。
Two methods of measurement of the refractive index profile in optical fibers: interference microscope method and near field method are evaluated.
分析电偶极子在无限大各向异性媒质中的辐射场，得出了近区场的级数表达式。
The radiation of an electric dipole in an infinite anisotropic plasma medium is analyzed. The near field expression is obtained by pursuing the Fourier transform.
同时对湖北鄂西-鄂东断面输送能力、荆门近区网架优化等相关问题进行研究。
Relevant studies such as the transmission ability between west and east Hubei grid and the optimization of the adjacent grid of Jingmen substation were also made.
界面近区基体金属发生了剧烈的多种形式的塑性变形，变形主要集中于波前漩涡附近。
Intense and manifold plastic deformation occurs in parent metal near interface zone, and deformation mostly fastens on eddy in front of wave.
根据人工引雷实测电流计算了其近区跨步电压的波形，取得了与实测数据一致的结果。
The waveform of step voltage calculated from a triggered lightning current is obtained and it is identical to the measured result.
介绍开断近区故障(SLF)时恢复电压的计算和灭弧室在不同燃弧时间下的理论分析。
Introduction to calculation of recovery voltage in short line fault (SLF) and theoretical analysis of the interrupter in various arcing time.
文章以试验为基础，对块石近区的流态进行了定性描述，探讨抛石护岸岸脚淘刷的机理。
In this paper, based on the fixed bed experiment, the flow regime near the riprap is described qualitatively, and the mechanism that the bank base of dumped riprap is brushed is discussed.
近区热水短路所引起的取水温升不仅同变态率有关，而且同排取水工程的布置和型式有关。
The differences of circulation from the near field between the two types of models not only depend on the distortion ratio but also depend on the layout and the type of outlet and intake.
提出轴线浓度校正系数的概念，从而清晰直观地证实了阻力盘具有提高射流近区稀释度的作用；
With the concept of concentration correction factor, the effect of the disc to improve the near field dilution of buoyant jet is confirmed.
分析结果认为，大约总能量的42.5%消耗于近区，主要是因为空腔内爆轰产物的高压所致。
It is considered that about 42.5% of the total energy is consumed at the close zone because of the existence of a high pressure caused by detonation product in the cavity.
介绍了近区场强仪的核准原理和方法，着重介绍了近区场强议的自动校准测试系统和软件的研究。
The calibration principle and method of the near region field strength meter are described, especially its auto calibration and test system and the study of software.
介绍了YCD - 1型超动态应变仪的研制、设计原理和主要特点，及在爆破近区应变测试中的应用。
This paper describes the development, design principle and main features of type YCD-1 ultra-dynamic strain gauge, and the application of it to strain testing in the near-blasting field.
该装置具有宽频带、大功率等特点，可以建立高场强的场强校准系统，进行场强探头和近区场强仪的校准。
The device possesses the characteristics of wide band and high power, etc. A high field strength calibration system may be established through its use.
采用电波暗室作为船模预测的试验场地，进行天线方向图、天线耦合度(或隔离度)、近区场强等参数测试。
The antenna radiation pattern and antenna coupling or isolation as well as near electric field strength are measured by using anechoic chamber as the test site of ship model prediction.
因此，测试隧道爆破近区围岩的振动、研究隧道掌子面附近围岩的振动规律是隧道钻爆施工安全的重要保证。
So it is necessary to test blasting vibration of the surrounding rock near tunnel blasting source and to study the blasting vibration rule.
重力勘探的近区地形改正，一般通过典型剖面的试验来确定是否需要改正，并采用简易地改仪实测地形改正值。
Generally based on surveys of typical geological section, it can be determined that if the shortrange terrain correction of gravity exploration is necessary or not.
高频段电磁环境恶劣，近区雷电在这一频段激发的天电噪声对HF -GW雷达的正常工作构成了严重干扰。
High frequency band is a hostile electromagnetic environment. In this band atmospheric noise emitted by lightning in a short distance may badly affect HF GW radar's normal function.
在实际工程中，同期电压的取法采用的是“近区电压优先原则”，并使用相关的隔离开关和断路器的辅助触点来实现电压的切换。
In engineering application, the selection of the synchronism voltage is usually according to the principle that the nearest voltages are prior.
利用电偶极子辐射场的矢势导出了阵列偶极子在导电媒质中辐射场的一般形式，所给出的公式不仅适用于近区、感应区，而且还适用于远区。
When the double and array dipoles are put in the conductive media, the formula of radiation field of them have been derived from vector potential equation of single dipole.
叛军包围了该市的近陆地区。
珊瑚海保护区面积近99万平方公里，从海岸向外延伸达1100公里。
The Coral Sea reserve would cover almost 990,000 square kilometres and stretch as far as 1,100 kilometres from the coast.
截至2019年底，我国有57处湿地自然保护区被列入公约重点保护湿地，其总面积达近700万公顷。
By the end of 2019, our country had 57 wetland nature reserves listed as major wetlands for protection under the convention, covering a total of nearly 7 million hectares.
截至2019年底，我国有57处湿地自然保护区被列入公约重点保护湿地，其总面积达近700万公顷。
By the end of 2019, our country had 57 wetland nature reserves listed as major wetlands for protection under the convention, covering a total of nearly 7 million hectares.
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