The rate of penetration of the negative pulse jet assisted drilling can increase from 0.7 to 3.0 in in-house simulation drilling compared to conventional drilling.
与常规钻井相比，室内模拟钻井试验条件下负压脉冲射流辅助钻井可以使钻速提高0.7-3.0倍。
The influence of negative pulse voltage applied directly to stainless steel samples on plasma characteristics has been found to be negligible, except sample sputtering.
直接施加于试样的脉冲负偏压对等离子体特性没有明显影响，但存在着一定的溅射作用。
On the bipolar-pulse mode HIPIB apparatus, a planar diode model of self-magnetic field MID is proposed for analysis of the diode behaviour during the negative pulse stage.
通过建立平面离子二极管模型，分析了负脉冲阶段二极管中初始等离子体的形成。
The positive polarity pulse will make better result for the samples than use negative polarity pulse.
对平行极化、方向指向阳极的样品，只要极化电场强度不是很大，宜选用正极性极化脉冲；
The temporal skewness of trans-ionospheric pulse is negative, which means its energy is shifted to the leading edge.
穿过电离层脉冲时间偏度数值为负，表明能量分布偏向上升沿。
Nowadays, the optical pulse used in the OTDM system is often generated by the gain-switched distributed-feedback (GS-DFB) semiconductor laser, which has a large pulse width and negative chirp.
目前常采用GS-DFB半导体激光器作为OTDM系统的光脉冲源，这种脉冲源产生的光脉冲一般较宽。
The article discusses the differences in physical mechanism of mode locking by laser pulse injection between the dispersion region at positive group velocity and that at negative group velocity.
本文阐述工作于正、负群速色散区中的光脉冲注入锁模的物理机制的区别。
Theoretical analysis and numerical simulation of compression to negative chirp pulse based on dispersion-shift fiber (DSF) using distributed Raman Amplification.
该文对分布式拉曼放大的色散位移光纤（DSF）负啁啾光脉冲压缩进行了理论分析和数值模拟。
The pulse steering circuit so designed solves fairly well the transition between positive sequence and negative sequence.
所设计的脉冲导向电路较好地解决顺序与逆序互相之间的过渡问题。
This makes achieving negative permeability under extremely low frequency as well as the permeability switching between positive and negative value rapidly through a magnetic field pulse into possible.
这使实现极低频的负磁导率以及通过磁场脉冲实现磁导率在正负之间快速跳变成为可能。
Applying a negative-going trigger pulse simultaneously to RESET and TRIG during the timing interval discharges C and reinitiates the cycle, commencing on the positive edge of the reset pulse.
应用一个负的触发器脉冲在一个定时周期内来同时复位和触发，这样使电容器C放电并且重新初始化一个循环，从复位脉冲的正边开始启动。
A new surface strengthening method, RE-Multi-Element diffusion, for HSS cutters by positive-negative pressure pulse process is investigated.
本文主要介绍采用正负压脉冲稀土多元共渗技术对高速钢刀具表面强化的一种新方法。
Objective To investigate the effect of limb's negative pressure on blood pressure, pulse and ECG of human being.
目的探讨肢体负压疗法对人体血压、脉搏及心电图的影响。
Because the height of micro tips on cathode surface can be eroded by the negative current, surface finishing is better in the micro-electroforming by periodic reverse pulse current than pulse current.
由于负向电流可以腐蚀削减铸层表面微观突起的生长高度，因此周期换向脉冲电流微电铸与单向正脉冲电流微电铸相比更易获得较好的铸层均匀性。
Experimentally, a light pulse propagating through the atomic vapor cell has its peak reaching the exit side before entering it, resulting in a negative transit time, and negative group velocity.
研究发现，当光脉冲通过一个原子气室时，在进入前其峰即到达出口处，造成负渡越时间和负群速。
Repression is a defense or coping style that in-dividual adopt in order to avoid negative affects, is a trait keeping away from or avoiding threatening thought, im-pulse and information.
压抑是个体为了避免体验到消极情绪而采用的一种防御机制或应对方式，是一种远离或回避威胁的想法、冲动或信息的行为倾向或特质。
Under regular drilling conditions, the velocity of negative mud pulse is higher than that of positive ones about 10 percent.
在常规钻井条件下，负脉冲信号的传输速度比正脉冲信号约高出1 0 %。
The generated monocycle pulse has acceptable symmetrical positive and negative portions and ringing …
产生的单脉冲的对称性和震铃水平都还在可以接受的范围内。
The generated monocycle pulse has acceptable symmetrical positive and negative portions and ringing …
产生的单脉冲的对称性和震铃水平都还在可以接受的范围内。
应用推荐