These problems such as the trading attrition have limited the developments of co-operations between these two counties.
经贸磨擦加大，经贸合作困难等问题制约了两国经贸合作发展的进一步深入。
Analytic analysis of friction s influence on coal(rock) samples temperature field;
磨擦对试件破坏过程温度场影响的解析分析
We also studied the nano-friction of carbon nanotubes.
本论文通过使用分子动力学方法研究了低维纳米材料如碳纳米管、Ni纳米线的力学和热学性能，以及在纳米磨擦领域也进行了初步的探索。
By process testing, we discovered the optimal rigidity matching value of friction 30CrSiMoVA Steel with the powder metallurgy material, and put forward an new heat treatment process.
通过工艺试验,找到了30CrSiMoVA钢与某粉末冶金材料相互磨擦时的最佳匹配硬度值,提出了一种热处理新工艺。
A rubbing away or wearing down by friction.
摩擦，磨损，消磨通过磨擦作用擦掉或消耗掉
crock resistance
[染色]耐磨擦性能
make a harsh noise by rubbing
（因磨擦）发出噪音
make a grating or grinding sound by rubbing together.
通过研磨而发出磨擦声。
sharpen by rubbing, as on a whetstone.
在磨石上磨擦使变尖锐。
testing method for colour fastness to rubbing-crock meter method
纺织品耐磨擦色牢度试验磨擦：摩擦色牢度仪法
Question: How about the friction in northern China?
问：华北的磨擦问题怎样？
[Matters were getting embroiled with Rome.
（当时正和罗马发生磨擦。）
soreness and warmth caused by friction.
磨擦引起的热和疼痛。
colour fastness to rubbing with organic solvent
耐有机溶剂中磨擦牢度
multi-disc self -locking differential
磨擦片式自锁差速器
Question: Is there any friction with the New Fourth Army?
问：新四军方面有无磨擦？
The hair is galled off from the thigh.
大腿上的毛被磨擦掉了。
colour fastness to rubbing off
耐擦净色牢度,耐磨擦色牢度;[涂层]耐磨色牢度
erosion by friction.
通过磨擦作用擦掉或消耗掉。
remove by or as if by rubbing or erasing.
通过磨擦擦除或以那种方式来消除。
To become worn or sore from rubbing.
擦伤，擦疼因摩擦而磨损或擦疼
The car grazed the garage door.
汽车擦磨了车库的门。