欠平衡的

Based on the analysis on digression coefficient, the balanced centrifugal force does not influence the magnitude of digression coefficient.

而欠超高产生未被平衡的离心力，应作为脱轨水平力的一部分与列车振动的侧向压力一起，产生不利的影响。

The computational formula on pressure increment in bottomholes affected by drilling speed is deduced as well.

首先利用在钻井过程中随钻测量起钻后地面回旋的方法，自行研制开发出能够抗180℃高温，具有抗震功能的测量仪器；其次，在原有模型基础上，利用实例数据进行分析，考虑固相和多相流加速度压降的影响，研制开发了流钻欠平衡钻井环空多相流井底压力的计算模型，并推导出机械钻速影响井底压力增量的计算公式；最后，为验证模型精度，开发了钻井监测与分析计算软件，软件计算结果与实测数据叶比，误差小于3%。

Based on an analysis of the recoupling process, this study brings out theoretical implications for understanding other public authorities and practical implications for urban development under URA.

因此，本文从地方财政支持的角度出发，围绕公平原则，找出并分析地方财政体制存在的问题和弊端；并对地方财政该如何进行有效调控，从而缩小上述的地区经济差异、促进广东欠发达地区的经济发展、缓解区域发展不平衡的矛盾，提出建议。

However,with the increase of well depth, complex architectual well and transmittable speed, the wired signal transmission is the inevitable development trends of intelligent drilling.

随着井深的增加、复杂结构井和欠平衡井的增多以及对传输速度要求的提高，电缆信号传输必然是今后智能钻井的发展方向。

A dynamic formation evaluation may be also realized through the analysis of borehole gas unsteady flow, so that the analysis is an important component part of well test while drilling theory of underbalance drilling.

通过对井内气体不稳定流动的分析，还可以实现钻井过程中的动态地层评价，因此，井内气体不稳定流动也是欠平衡钻井随钻试井理论的重要组成部分。

The air well drilling is one kind of practice underbalance drilling,compared with other well drilling relatively have one's own advantages improve the speed of drilling,Protect the oil gas from bearing formation,find the oil and gas in time,but require especial equipment,Minimum displacement in the air well drilling is the difficult point,and its key too.

空气钻井是一种实用的欠平衡钻井，与其他钻井比较有自己的优势：提高钻速，保护油气层，及时发现油气，但装备要求高；空气钻井中最小排量的是难点，也是其关键点。

In underbalance circumstances, the response characteristics of partial logging instruments and the influence upon log data are analyzed and the influemce factors of the data on deep-shallow dual laterolog, compensated sonic log and compensated neutron log, etc.

文章对欠平衡状态下部分测井仪器的回应特徵及测井资料受到的影响进行分析，主要考虑了深浅双侧向、补偿声波、补偿中子等资料的影响因素。

Air underbalance drilling, is the drilling technique which could used gases, typically compressed air, natural gas, nitrogen and diesel tail gas as a circulation liquid.

气体欠平衡钻井，可以采用空气、天然气、氮气、柴油机尾气作为循环介质，其循环系统的压力分布、钻井机械的选择、控制井斜与传统钻井方式相比有着很大的区别。

And it is suggested to apply UBD, to optimize drilling parameters when adopting the new casing programs, to optimize WOB and RPM, to choose optimal longlife highefficiency bits, etc.

针对新场气田深井钻井周期长、机械钻速慢、现有钻井技术影响和制约后期完井和增产的实际问题，深入分析研究了影响新场气田深井钻井提速的关键制约因素，提出了优化完井井身结构、推广应用欠平衡钻井技术的建议。

Usage of is wider and wider. On the basis of developing history of CT, the paper describes the advantages and disadvantages of CTD,CT drilling rig system, underbalanced CTD and through tubing sidetracking technique of CT.

在概述连续软管发展史的基础上，叙述了连续软管钻井的优缺点、连续软管钻机系统、欠平衡连续软管钻井及连续软管过油管侧钻技术，介绍了国外石油公司利用连续软管钻井的先进经验。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。