1) slack-loop
垂环
1.
Firstly, the principle, configuration and function of the slack-loop control system is introduced.
本文首先介绍了垂环控制系统的原理、结构及功能，并根据系统的特点和性能要求，建立了垂环控制系统的数学模型，提出了采用传统PID控制与智能控制相结合的方法，解决了生产中所面临的问题。
2) photoelectric drop ring
光电垂环
1.
The paper introduces a practical single-chip synchrocontroller by photoelectric drop ring,expounds photoelectric detection,designs and tests of the controller hardware and software.
介绍了一种实用的单片机光电垂环控制器,阐述了光电垂环检测,控制器硬件和软件的设计及调试。
2.
Synchronism running of guidance tape, gluey blanket as primary driving as well as rotary screen is controlled by photoelectric drop ring.
导带与主传动的胶毯和圆网同步运行,由光电垂环控制。
3) vertical circulation
垂向环流
1.
The calculated re-sults show that there exist vertical circulations mainly formed by diluted water of upperlayer and salt water of lower layer for compensation in the east and west channels of theLingdingyang Estuary.
结果表明，东、西两槽均存在由湾口表、中层冲淡水和底层上溯流构成的垂向环流，平均流、斯托克斯漂移效应以及垂向净环流是净输沙的主要贡献项。
5) vertical circulation
垂直环流
1.
Wind field, vertical circulation, relevant physical variable field construction and its distribution character of Mei yu front strong torrential rain are presented.
应用国家气象中心ＨＬＡＦＳ模式计算的物理参数，对１９９６年长江中下游地区梅雨期一次持续性大暴雨过程形成的物理条件进行了诊断分析，给出了梅雨锋强暴雨的风场、垂直环流及其有关的物理量场结构和分布特征，所得结果有利于实时预报业务和科研工作。
2.
The low-frequency oscillation(LFO)features of East Asian winter monscon circulation are investigated in terms of ECMWF/WMO daily gridded data subjected to objective analysisand with a bandpass filter,Results show that both the horizontal and vertical circulations of themonscon have marked quasi-40-day LFO features.
利用ＥＣＭＷＦ／ＷＭＯ逐日客观分析格点资料，采用带通滤波分析了冬季风环流的低频振荡特征，结果表明冬季风水平环流和垂直环流都表现出显著的准４０天振荡特征，高低层水平环流的低频变化主要受热带西太平洋和澳大利亚附近的低频涡旋系统的影响，纬向环流的低频变化表现为Ｗａｌｋｅｒ环流的加强和减弱。
补充资料：双垂环髻
双垂环髻 古代妇女发式。将头发分成两部分，在头的两侧各盘卷一髻和一垂环，称“双垂环髻”。一般未婚女子或侍女、婢伎、童仆等都梳这种发式。自汉至明在民间较流行。唐杜甫诗：“至老双环只垂颈，野花山叶银钗并。”说唐代女子“至老”还没出嫁，仍“双环垂颈”(双垂环髻)。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条