1)  drag loss
阻损
2)  friction loss
摩阻损失
1.
Experimental study on friction loss of prestressed pipe for 32 m simply supported box girder of passenger special line;
客运专线32m简支箱梁预应力管道摩阻损失试验研究
2.
Test & study on friction loss of prestress wine with space curve in plastic pipe ZHANG Qiu-ling~1, XIAO Guang-hong~2;
塑料波纹管曲线预应力束摩阻损失系数的试验研究
3.
Study on the Friction Loss of Hydraulic Lifting Large Solid Particles in Vertical Pipeline;
垂直管道大径固体颗粒水力提升摩阻损失的研究
3)  the wasting of fluid resistance
流阻损耗
1.
The current centralizer has such defects as being apt to tire and wear off,worse seal and the wasting of fluid resistance.
现有扶正器有易疲劳损伤、对接不严、流阻损耗的缺点。
4)  Frictional loss
摩阻损失
1.
Based on the frictional loss in ventilation of extra long highway tunnels and the longitudinal shaft blow-suction,this paper analyzes and calculates how frictional loss affects tunnel projects,proposes some suggestions of various constructional forms and discusses the ventilating project affected by the roughness of surface.
以竖井送排式通风构造为例 ,针对公路隧道路工程通风中存在的摩阻损失 ,分析了摩阻损失对工程的影响 ,对各种构造型式的摩阻损失系数提出了一些建议 ,并对实际特长公路隧道营运通风进行了计算分析 ,同时讨论了壁面粗糙度对通风工程的影响。
2.
This paper proposes a general model of curved prestressing tendons in skew web of the curved box girder bridge,the effects of space curve on frictional loss have been analyzed.
以具有普遍性的曲线箱梁斜腹板内空间曲线预应力束为例，分析了空间曲线对预应力束摩阻损失的影响。
5)  leakage loss
轮阻损失
6)  ?resistance loss
电阻损耗
参考词条
补充资料：阻尼损耗因数
分子式：
CAS号：

性质：是应力与应变之间的相位角δ(称损耗角)的正切值。损耗因数d=tgδ。通常作为受强制振动体系阻尼的一种量度。也可以把它看成在拉伸、剪切、压缩和纵向压缩中测量的损耗模量(或损耗柔量)与储能模量(或储能柔量)之比。这时， 。所以，它是黏弹性材料的一个重要力学量。特别在防震或隔震材料的选择上是很关注的一个参数。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。