ring-down-toll line

For the exactly soluble case of unidirectional ring laser with a homogeneous broadened line, the frequency shift relation, the critical and threshold value of inversion, the phase transition behavior and the features of the two-photon lasers with injected signal are analysed.

就可以精确求解的均匀展宽、单向环形激光器的情形，分析了频率位移关系，反转度的临界值和阈值，相变行为，以及带有外加讯号的双光子激光的特性。

This company manages the master line: ring-Ningbo, Shanghai, north turn.

本公司经营主线: 玉环 - 宁波 、 上海 、 北轮.

EDWARD GREEN: Okay. I'll ring back. Does Mr. Smith have a direct line?

爱德华.格林: 那好吧. 我再打过来. 史密斯先生有直线电话 吗 ?

The spacer ring is already pre-fitted on the new fuel line.

隔环已预先安装在新燃油管路上。

This line includes mainframe extruder, screen changer, mould, water ring, lambdoidal board haul-off units, and winder.

该机组主要由主机 、 换网器 、 模具 、 水环 、 牵引机、人字板 、 收卷机等组成.

The whole system, including the HII region and the gas-dust ring, moves at a sight line velocity of-61.0 km/ s in a large cloud that has a sight line velocity of-57 km/ s.

包括环和HⅡ区在内的整个系统视向速度为-61km/s，该系统居于视向速度为-57km/s的更大分子云中。

Tapered roller bearing inner ring ( outer ring ) of the axis line.

圆锥滚子轴承内圈 ( 外圈 ) 的轴心线.

According to the principium geotechnical engineering investigation data of the south ring of the surrounding highway of Guangzhou of the main line national highway, this paper introduces the integrative application of original test and drilling.

文中通过国道主干线广州绕城公路（珠江三角洲经济区环形公路）南环段（下简称南环段）的初步勘察，介绍在该段高速公路中的原位测试手段在工程地质勘察中的综合应用。

Spaceband: Spacing pieces used by line-casting machines. Study on working mechanism and conditions of wedge caulking and wedge refunding of wedge typed overrunning clutch with assistant-ring

活楔：行式排铸机所用的楔。带辅助环的楔块式超越离合器工作机理及楔紧和退楔条件的研究

The single-chip-microprocessor is used to control the tension by closed ring control to realize on-line precise tension control.

同时还提出用单片机进行闭环控制，实现张力的准确，实时在线控制的方法。