drag fold

Review of airgun array hanging and towing systems in seismic exploration;

地震勘探空气枪悬挂拖曳系统综述

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。

Optimization and identification on current drag coefficients of isolated ice floe based on experimental data;

基于试验数据优化辨识孤立冰块的流拖曳系数

At present, two single-function detectors were employed to detect dragging and axial compression perfor- mance of clutch plate respectively, and every detector has machine tool, control system and testing system respec- tively, at home and abroad.

目前，国内外检测离合器从动盘拖曳特性及轴向压缩特性均分别使用两台单一功能的检测机，需分别配机床、工控机及测试系统。

A new criterium based on the ratio of local spray dragging force to local smoke buoyancy was proposed to analyze the stability of smoke under sprinkler spray.

对水喷淋作用时液滴与烟气层的相互作用过程进行分析,采用单位体积液滴拖曳力与烟气浮力的比值作为参数,建立了水喷淋作用时烟气层稳定性的判断方法。

The orientation the bow of gold dredger must face to when taking up berth in flood season and the method to estimate the dragging force of gold dredger produced by the pounding of flood water are explained and introduced in this paper.

本文介绍了采金船渡汛时的停泊方向及采金船在洪水中可能产生拖曳力的估算方法。