Medium frequencies and horizontal magnetic dipoles (vertical loop antennas) can be used in underground radio communication in mining sections of coal mines.
中频频率和水平磁偶极子天线(垂直环状天线)是井下采区无线通信可使用的频段和天线型式。
On the interior of the circulation loop, programs include glass fronted conference rooms, testing LABS, training rooms, vertical circulation, toilets, and building mechanicals.
在循环回路的内部，功能空间包括玻璃幕墙的会议室、测试实验室、培训室、垂直交通、厕所和大厦机房。
Based on analyzing the dynamic characteristics of vertical servo motor of a NC vertical grinder, the effect of the parameters of speed loop on the servo system was studied.
分析了数控立式磨床垂直进给轴的机电动态特性，研究了伺服系统的速度环参数对伺服系统性能的影响。
This paper describes an experimental and theoretical research on the two-phase flow pattern transition of downflow in vertical helical coils in an air-water loop.
本文对低压水-空气两相流动在立式螺旋管内向下流动的流型及其转变特性进行了实验和理论研究。
The steam-water two-phase flow instability in vertical parallel pipes was studied experimentally in the high pressure steam-water test loop.
在高压汽水回路上对垂直并联管中汽液两相流不稳定性进行了试验研究。
Extensive experiments of steam-water two-phase flow and boiling heat transfer in a vertical helically-coiled tube were carried out in high pressure water test loop of Xi an JiaotongUniversity.
报导了在西安交通大学高压汽水实验回路上进行的垂直螺旋管内汽水两相流传热试验研究。
An annular groove is at the outer surface of the insulated loop frame, which requires a vertical parting of the mould along the axis.
线圈绝缘框外侧有一圈凹槽，要求成型模具沿轴线垂直分型。
This paper analyzes the causes of the problem of vertical disorder of single-pipe series-loop hot water heating system and suggests some approaches.
分析了单管顺流式热水采暖系统出现垂直失调问题的原因，提出了解决措施。
The heat measuring method with flow and temperature coefficients suitable for vertical single-pipe series-loop heating system is proposed, and its working principle and characteristics are introduced.
提出适用于垂直单管顺序式供暖系统的流量温度系数热计量方法，介绍了工作原理和特点。
Computer use of vertical feed system for open-loop control.
利用微机对纵进给系统进行开环控制。
The transient response of the 1d earth model excited by a circle loop is obtained by integrating the response of vertical magnetic dipole over the circle loop.
采取先求解垂直磁偶极子响应，再沿大回线源积分的方式求解大回线源的一维瞬变响应。
A type of loop antenna used for Y7-200A airplane is given. The antenna is located on the front edge of the vertical stabilizer. It is conformal with the configuration of the plane.
给出了一种用于Y7 2 0 0A运输机的隐蔽式短波天线，该天线为位于飞机垂尾前缘的回线天线，与飞机的外形共形，不影响飞机的飞行性能。
A type of loop antenna used for Y7-200A airplane is given. The antenna is located on the front edge of the vertical stabilizer. It is conformal with the configuration of the plane.
给出了一种用于Y7 2 0 0A运输机的隐蔽式短波天线，该天线为位于飞机垂尾前缘的回线天线，与飞机的外形共形，不影响飞机的飞行性能。
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