Test measurement of the effective degassing radius of advancing hole implemented by QFZ-22 borehole;
QFZ-22钻机实施超前钻孔有效排放半径的试验测定
A new leading protection device was designed for the anti-longitudinal rips belt caused by the press and jam of big material.
对大块物料或长条形异物卡压引起带式输送机纵撕事故机理进行了分析,设计了一种新型超前防压卡纵撕保护装置,该装置采用双作用综合判定,选用的关键器件简单、可靠,当发生压卡输送带条件时便立刻停机保护,避免了发生撕带引起的损失,可起到超前保护作用。
The paper introduces the design,manufacture and implementing situation of the leading cable and hose towing director motion devices in the working face of Datong Coal Mine Group Silaogou Mine to mine the full coal height once and offer some suggestion for reference to administrate the leading cable and hose towing director motion devices for the future.
简要介绍同煤集团四老沟矿大采高工作面超前电缆及管路拖曳导向移动装置设计制造和实施情况,为今后综采工作面超前电缆及管路移动管理提供借鉴意义。
Space positioning of shield is determined by 3D Cartesian coordinates and 3D attitude angle;positioning of segment lining ring is determined by 3D Cartesian coordinates plus 2D "leading of a side" and roll angle.
盾构机的空间定位用三度直角坐标和三度姿态角,拼装式衬砌环的定位用三度直角坐标加两度"侧超前"和横滚角。
It shall increase its technical level and supply an active and positive service to meet all the market requirements of the owner and construction units,including leading service and lash-u Pone to deal with natural disasters.
设计企业如何做好对业主的满意服务即服务质量的提高,这就需要按照卓越的理念从提高自身的技术水平和提供主动积极的服务来满足业主和建设单位的各种市场需求,包括超前服务和应对自然灾害的突发性处理服务。
An introduction is given to the goal, thinking, method, means, working principle, procedures and judege method, result of forecasting and experience of advance forecasting technology in geological survey for construction of large tunnel,based on the advance forecasting technology used in Jindong Tunnel on Chongqing-Huihua Railway Line.
结合渝怀铁路金洞隧道施工地质超前预测预报技术的实施,着重介绍长大隧道施工地质超前预测预报技术应用研究的目的、思路、方法、手段、工作原理、实施步骤与判别方法、主要预测预报成果及体会。
Judging from its form, exaggerated premature sentence consists of two features:1.
从形式上看 ,“还 A就 B”超前夸张句式具有两个特征 :1、关系词“还”“就”相互作用 ,组成“还 A就 B”结构 ;2、A、B处于同一语法平面 ,相互之间无包含与被包含的关系。
This paper analyses prematured exaggeration sentence pattern of "还 A 就 B" by grammatical forms, semantic features and pragmatic information.
本文从句法形式，语义特征，语用信息三方面讨论“还A就B”超前夸张句式。
In consideration of the problems of starting pressure,effective driving pressure difference being hard to be established between oil and water wells in low permeability oilfields,it was proposed that advance water injection was used.
基于低渗透油田存在启动压力梯度、油水井间难以建立起有效的压力驱动压差,提出采用超前注水的开发模式。