查询词典 roughness

The honed crosshatch pattern in the cylinder bore acts like a file to allow the rings to wear. The rings quickly wear down the "peaks" of this roughness, regardless of how hard the engine is run.

被珩磨成刀路相互交叉的油缸内孔像一把锉刀去摩擦密封环，密封环很快就将各高点磨掉，这与狠用发动机没有关系。

Between crudeness and refinement, between roughness and polish, between a low and a high level, and between slower and faster work.

有这个借鉴和没有这个借鉴是不同的，这里有文野之分，粗细之分，高低之分，快慢之分。

ABSTRACT This thesis presents researches on the measurement and control of cylindrical grinding surface quality and the measurements of roughness of very smooth surfaces with the help of the finance from The second Automobile Works of China and National Natural Science Foundation of China.

本文是在第二汽车制造厂和国家自然科学基金委员会共同资助下，分别对精磨过程中外圆磨削表面状态的检测与控制和超光滑表面状态测量这两项课题进行了研究。

The tea culture is not only an ancient living style but also a fashion: Tea ware, carriers of the tea culture, had developed from none to presence, and from roughness to daintiness.

而茶文化在一个地区或民族的不同文化下，世代相传，既有传承性，又有特异性，是一种既十分古老，又时尚的生活方式。

The datum line and mainly three profile height parameters of surface roughness are briefly introduced and the operation principle and system structure of AFM.

简要介绍了评定表面粗糙度参数的基准线及其主要的两个轮廓高度评定参数，详细阐述了重庆大学研制成功的一种高精度原子力显微镜——AFM。

This paper presented the research and exploration of mechanism and technics as well as the design of the magnetic circuit of this new compound machining, based on above, establishing the parameter model, meantime, analyzing influential effects on productivity of magnetic and EDM compound machining the holes through large numbers of experiments, including velcoity contrast experiments of pre-compound and after-compound machining with the change of current, velcoity contrast experiments of pre-compound and after-compound machining with the change of magnetic induction, velcoity contrast experiments of pre-compound and after-compound machining with the change of impulse width, experiments of the superficial roughness, experiments of the Electrode wastage, and intersectant experiments analysis as well as the change experiments of current waveforms. Through a number of experiments we analysed the influential effects of magnetic and EDM compound machining, compared the factors with EDM by oneself. A large of experiment records and deducibility have demonstrated that the productivity of magnetic and EDM compound machining is developed by 20%～400% than traditional EDM.

本论文对磁场电火花复合加工这种新的复合加工的机理、工艺和复合加工的磁路设计进行了研究和探索，在此基础上，建立了磁场电火花复合加工的参数模型，同时通过大量的随着电流变化磁场电火花复合前后加工速度对比实验、磁感应强度变化时的加工速度变化实验、随脉冲宽度变化的加工速度实验、表面粗糙度实验、电极损耗量实验、磁场电火花复合加工正交实验分析、电流波形变化等实验，实验分析了影响磁场电火花小孔加工效率的因素，并且跟单一的电火花加工中的影响因数进行了比较，大量的实验数据和理论推导证明磁场电火花复合加工比传统的单一电火花加工的效率提高了20％～400％左右。

Besides, because of diversity of biochip image, the shape of some spots can not be uniformly circular. Solved the problem of coarse segmentation and modification of deflexion angle, a method of tracking local spots profile—Template snake model has been proposed in the paper, it can recognize the target from roughness to precision step by step, so to guarantee the precision and efficiency of segmentation.

此外，由于生物芯片多样性特点，某些芯片样点外形并不一定是简单的孔径问题，本文在比较彻底地解决了样点粗分割及偏转角校正后，提出了局部区域的样点轮廓跟踪方法——Template snake模型，实现由粗到精的宏状多目标分层识别策略，既保证了样点分割的正确率，又加快了执行速度。

To study the tensile bond strength between Titanium alloy with different surface roughness and dentin.

研究不同表面粗糙度的钛合金与牙本质之间拉伸粘结强度的差别。

OBJECTIVE: To compare the difference in bond strength between titanium alloy with different surface roughness and dentin.

摘要目的：观察比较不同表面粗糙度的钛合金与牙本质之间拉伸粘接强度差别。

Results indicate that surface roughness of the coating decreases and benthic diatom reduces attaching onto the coating with the increase of content of PTFE in paint studied.

结果表明，随着氟碳涂层中PTFE含量的增加，涂层的表面粗糙度降低，涂层上底栖硅藻的附着量随之减少。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。