1) borehole variations
井径变化
1.
Effect of borehole variations on borehole compensated sonic logging(BCSL) based on 2D finite-difference method(FDM);
基于二维有限差分法的井径变化对补偿声波测井响应的影响
2) runoff variation
径流变化
1.
Application of SWAT model to analysis of runoff variation of Buha River Basin of Qinghai Lake;
SWAT模型在青海湖布哈河流域径流变化成因分析中的应用
2.
Trend and causation analysis of runoff variation in the upper reach of Chaobaihe River Basin in northern China during 1961-2005;
潮白河上游1961—2005年径流变化趋势及原因分析
3.
The paper analyzes the runoff variation of the headwater region of the Yellow River since 1960 s by using Spearman s rank correlation method and approaches the reasons of variation based on the affecting factors of precipitation,temperature and underlying surface.
采用斯波曼秩次相关法分析了黄河源区20世纪60年代以来径流变化情况,并从降水、气温、下垫面等影响因素探讨了黄河源区径流变化原因。
3) roll diameter change
辊径变化
4) inner diameter change
内径变化
1.
The anti-internal-pressure strength is calculated for the eccentrically worn tubing to determine the limit of inner diameter changes of the tubing,by which technical parameters are provided for the tubing application and management in field production.
进行偏磨油管抗内压强度计算,确定油管发生偏磨后内径变化的极限值。
补充资料：井径
1.田间小路。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条