【阅读】0414起悦读整理（4.28日 14点更新）

masakishinobu

一、【考古】中耳肌肉

二、【考古】work-class女性

三、【考古】cost disease

四、【考古】恐龙灭绝

五、【暂无考古】土著和新移民

六、【暂无考古】wage

七、【考古】boater

八、【考古】南北黑人

九、【考古】俄国革命     

十、【考古】Crops yields和herds

十一、【考古】地球自转

十二、【考古】Indo-European language

十三、【考古】mortgage tax

十四、【考古】海鸟预警地震

十五、【考古】中国工业革命

十六、【考古】technocentric

十七、【考古】婴儿听音乐

十八、【考古】anti-slavery feminism

十九、【新增考古】补牙

二十、  【考古】stakeholder model

二十一、【考古】日美企业对比

二十二、【考古】行星轨道

二十三、【考古】企业集中的优势

二十四、【考古】早期作品

二十五、【新增考古】政府监管与金融危机

二十六、【考古】income mobility

二十七、【考古】植物间gap与繁殖

二十八、【考古】UV

二十九、【考古】starling

三十、 【考古】汽车修理公司顾客满意程度调查

三十一、【考古】插播广告的影响

三十二、【考古】grey market

三十三、【暂无考古】家养植物

4.14日更新：更新7篇原始，5票考古。

4.16日更新：新增5篇原始和考古。4和6新增了原始。

4.16日晚更新：新增3篇原始和考古。

4.18日更新：新增3篇原始+考古，第6篇改名并添加考古。

4.19日更新：新增7篇原始+5篇考古，把6分成了两篇。

4.21日更新：新增4篇原始+4篇考古，新增原始6和19。

4.23日更新：新增25的考古，并改名。

4.27日更新：新增31的原始+考古，新增2和5的原始。

4.28日更新：新增19补牙的考古，32的院士和考古，33有原始没有考古。

杀伐四方

感谢分享！               

大黄黄

谢谢

moonbiya

感谢分享！               

Deland_Z

谢谢！thank you！

八朔酱

整理君 第19篇补牙的那个 好像去年0506库里的一篇《.弹簧的弹力（residual stress）》

The average person is likely to feelmildly alarmed on being told that dental fillings contain locked-in stresses.We all have a somewhat hazy不清楚的 understanding that stress leads tofracture and can vaguely recall dramatic instances of stress-related failures.Thus we are likely to feel that all material stresses are without redeeming挽回的 value and should, if possible, be eliminated.

A truer picture of the behavior ofmaterials is both more complicated and more interesting. It turns out that itis difficult to work a rigid material without introducing permanent internalstresses. Most common manufacturing operations, such as turning, grinding, and peening,can set up internal stresses, and many familiar objects are subject to them,including dental fillings, computer chips, and pipelines.Butthese residual stresses can be beneficial as well as harmful. Indeed,manufacturers sometimes go to great lengths to introduce them. Manystress-related effects and recipes for obtaining them have long been known toartisans. What is new is the ability tomeasure the stress fields directly rather than inferring their nature fromwarpage and breakage. Several trends in engineering design make this analyticalcompetence important.

One of the trends is the proliferationof nontraditional materials. The best way to work a sword or to coil绕成圈 a spring弹簧 may be known, but no comparable body oflore知识 exists for ceramic transducers陶瓷转换器 or semiconductor wafers半导体晶片 or compositeairfoils复合材料机翼. Asecond trend is the trimming of safety margins修正安全边际. Bridges andother load-bearing structures have traditionally been built with large safetyfactors, but the lavish过分给予的,大量生产的 use ofmaterials required by this practice is increasingly uneconomic（原文在这里有改动，给了一些比较具体的数字）; in the case of objects that must belofted高高地升到空中 into space, a large safety factor istotally impractical. A third trend is the reduction in scale of many engineeredsystems. Residual stresses play a much more important role in the microscopicmetal微观金属 interconnects on the surface of a chip缺口 than they do in a thick electrical cable电缆.

masakishinobu

moo111111 发表于 2017-4-25 14:25
今天比对了一下悦读
怎么好像也不像呢?
整理君你说的是这个库的吗  2016.12.14-2017.01.04

我说的是2015年12月底到2016年1月初 那个。

moo111111

masakishinobu 发表于 2017-4-25 10:29
是2016年那个12月末开始的库 应该...

今天比对了一下悦读
怎么好像也不像呢?
整理君你说的是这个库的吗  2016.12.14-2017.01.04

masakishinobu

moo111111 发表于 2017-4-25 00:38
想请问整理君是跟今年到1/23的同库吗
怎麽看起来不太一样呢？

是2016年那个12月末开始的库 应该...

moo111111

masakishinobu 发表于 2017-4-23 22:04
嗯是的~

想请问整理君是跟今年到1/23的同库吗
怎麽看起来不太一样呢？

希望也跟1/23的19天才换题