查询词典 ring in

Comparisons between the experimental and computational IR spectra clarify the difference of the open- and closed-ring isomers, which indicate that it is possible to identify the tautomeric form of this diarylethene derivative using a highly selective infrared absorption band and the strong absorption at 1 705 cm-1 of the ring-closed isomer can be used in non-destructive readout by IR light.

通过红外吸收光谱表征了该光致变色二芳基乙烯衍生物在溶液中开、关环前后结构的变化，并采用理论化学计算方法研究了该化合物开、关环异构体的红外吸收振动特性。光致变色异构化过程可以通过红外吸收光谱的变化而识别。关环异构体在1 705 cm

Therefore, the whole Beijing real estate supply will decline substantially "," I forget what, now down more than 6000 approved 10,000 square meters, inside the Second Ring, 9% between the second ring to the tricyclic 11%, between tricyclic tetracyclic to 11%, tetracycline 69% outside.

因此，整个北京房地产供应量将下降大大&，&我忘记了什么，现在已经降到6000多批10000多平方米，二环内， 9 ％之间的第二环，以11 ％的三环，四环之间三环至11 ％，四环素69 ％以外。

The three-ring line in Beijing seems to be a small community of small nodes in major cities, small cities, so that it has been the rapid expansion forgotten, whether it is a natural social environment for the community or the community of life are floating population the surrounding high-rise buildings, bustling city noise out of tune, I lived just a few days, so I can not judge how he formed, but her presence is the first time I came to Beijing to surprise some people, the tension of Beijing has been expanding beyond the three-ring style, and even farther into the tetracyclic rings greater geographical direction, but this community did not catch up with this tide, he just quietly watching the dramatic changes around, and silence in their own small world.

这个位于北京三环线上的小社区似乎是一个大城市中的小节点，小的让它在城市的急速扩张中被人遗忘，无论是社区的自然社会环境还是社区中生活的外来流动人口都与周围的高楼大厦、喧嚣的城市繁华格格不入，我才刚刚生活了几天的时间，所以我无法判断他如何形成，但她的存在还是让我这个第一次来北京的人有些吃惊，北京城的张力已经膨胀式的越过了三环，冲向四环五环乃至更远更大的地理方向，但是这样的社区却没有赶上这样的潮头，他只是默默的关注着周围发生的剧烈变化，而沉默于自己小世界里。

It has shown that the tensile index and ring crush index of handsheets were increased by 15.90% and 9.65%, when phenol-formaldehyde resin modified by diethylene triamine was used in OCC pulp alone (the dosage of resin was 1.0%), and then adding cationic starch to pulp (the dosage of starch was 1.0%), the tensile index and ring crush index of handsheets were increased by 32.81% and 29.29%.

实验结果表明，二乙烯三胺改性的酚醛树脂单独作用于OCC废纸浆时(用量为1.0%)，抗张指数和环压指数分别增加了15.90%和9.65%，当加入阳离子淀粉时(用量为1.0%)，抗张指数和环压指数分别增加了32.81%和29.29%。

Procedure for the three-ring servo system PID control algorithm simulation, which tricyclic ring for position, velocity and current loop Central.

此程序为三环伺服系统的PID控制算法仿真，其中三环为位置环、速度环和电流环。

She know her mother would not agreed that she accepts the unformal finger ring,so she keeps the secret of her engagement, and only wears the finger ring when at her work.

她知道母亲不会同意她接受这样一枚不正式的戒指，所以她对自己订婚一事严守秘密，只在上班时才戴上那戒指。

A simple ungrooved ring, especially a wedding ring .

结婚戒指一种简单的未刻花纹的戒指，尤指结婚戒指

The bands of marriage and family.A simple ungrooved ring, especially a wedding ring.

结婚戒指：一种简单的未刻花纹的戒指，尤指结婚戒指

Furthermore, it is presented that if I is a two-sided ideal of a unital ring R and I is an exchange general ring,then every central element of I is a clean element in I.

还证明了如果环R的双边理想I是一个exchange一般环，则I的每一个中心元素都是I中一个clean元素。

Performance+ Seat Ring- Flow-straightening, vaned seat ring is available in full port and first reduction port sizes.

性能+座圈流矫，叶片扩压座圈可在第一次全面的港口和港口规模的减少。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。