查询词典 potholing

Modern Cavemen Cave exploration, or potholing, as it has come to be known, is a relatively new sport.

洞穴勘查——或洞穴勘探——是一项比较新的体育活动。

Cave exploration , or potholing , as it has come to be known , is a relatively new sport .

原译：山洞探险，或人们通常称之为洞穴探险，是一项比较新运动。

Cave exploration , or potholing , as it has come to be known , is a relatively new ort .

原译：山洞探险，或人们通常称之为洞穴探险，是一项比较新运动。

Cave exploration,or potholing,as it has come to be known,is a relatively new sport.

寻求独居独处的愿望或寻求意外发现机会的欲望吸引着人们来到地下深处。

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。