tattletale;tattle tale是什么意思

网络释义

用法例句

An Initial Idea for Developing New Reverse Circulation Drilling Technology and Equipment;

关于开发新型反循环钻进工艺装备的初步设想

To solve effectively the problem of sand removing in low-pressure absorption wells,a drilling sand pump was developed.

为了有效解决低压漏失井的井下清砂问题,研究开发了一种具有钻进功能的捞砂泵。

In order to solve the drilling problems,diamond thin-wall core bit is developed and produced by adopting composite electroplating method.

在研制过程中,对金刚石钻头的胎体配方进行了优化,确定了电镀工艺参数,分析了金刚石参数等对钻进过程的影响,采用混目金刚石扩大了钻头的适用范围,提高了钻头的自锐性。