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An analysis of biomass and heavy metal contents was also conducted on the four test strains cultivated with different casing materials including loam, red soil, peat, and a mixture of red soil and peat.

上述菌株分别利用不同覆土包括壤土、红土、泥炭土及红土与泥炭土混合物，进行覆土管理，藉以分析其产量典重金属含量。

The casing receives a pill-shaped PTC, which is held pressed between two electrodes having a high heat conductivity coefficient.

壳体（1）接纳一个药片状的PTC加热元件（5），该元件被加压夹持在两个具有高导热系数的电极（6和7）之间。

Its upper end is drill pipe box or union, the nether end is casing pin. It is a crossover with hollow inside.

它是个上端为钻杆母扣或者由壬，下端为套管公扣，内空心的转换接头。

The program is to process all kinds of oil well pipe thread and casing coupling.

项目内容：该项目是加工各类油井管螺纹、套管接箍的机械加工项目。

Drill pipe power tongs and casing power tongs manufactured by the company have been awarded as famous-brand products for China petroleum and petrochemical equipment manufacturing industry.

公司享有API7K、8A、8C会标使用权，钻杆动力钳和套管动力钳系列产品被评为&中国石油石化装备制造业名牌产品和驰名品牌产品&。

The main products has: ZQ drill pipe power tongs series, QT Series Casing power tongs, FYZ series air-cooled hydraulic, pneumatic winch series, XYQ tubing power tongs series, ZQ-100 suspended or devices.

主要产品有：ZQ钻杆动力钳系列，QT套管动力钳系列，FYZ风冷液压系列，气动绞车系列，XYQ油管动力钳系列，ZQ-100吊升装置等。

In view of seperated layer polymer injection of partial wells at the Xing 13 area---polymer industry pilot area in Daqing Oil Field, main research content of this article is to design and applicate the minor diameter pipe and the necessary tool to flood polymer seperated in the casing-damaged well.

针对大庆油田杏十三区聚合物工业试验区部分井开展的分层注聚，本文的主要研究内容是套损井聚合物驱小直径分注管柱及配套工具的设计和应用。

There is an eardrum-ripping blast that pulverises the casing, and fires a charge about sixty feet in the air.

一声震耳欲聋的爆炸后，炮仗的外壳粉身碎骨，把一小包火药喷射到60英尺高的空中。

Company covers an area of 6000m2, equipped with casting, steel casting, machining, finishing, such as workshops, the chemical industry are the production of sulfuric acid equipment sentinel professional enterprises, can provide users with 10-400Kt / a sulfuric acid plant voltage cast iron pipe into tower oliveri heat plate, with three towers acid, boiling furnace hood, K alloy casing, valves, etc..

公司占地面积6000m2，设有铸造、铸钢、机加工、精加工等车间，是化工行业定点生产硫酸设备专业企业，能为用户提供10-400Kt/a硫酸装置耐酸耐压铸铁管、转化塔耐热篦子板、三塔分酸器、沸腾炉风帽、K合金套管、阀门等。

Because there will always be a wellbore casing, but also no longer have to play under the drill pipe within the wellbore swabbing the role, to improve the well control situation.

因为井筒内始终有套管，也不再有起下钻杆时向井筒内的抽汲作用，改善了井控状况。

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。