评论:表面粗糙度的主要参数

表面粗糙度也称表面光洁度,通过表面粗糙度仪测量得到数据,一般在国内通用的为Ra值  粗糙度的单位为:微米(um)具体请查看以下资料:7.3 表面粗糙度参数及定义7.3.1 轮廓算术平均偏差Ra在取样长度内轮廓偏距的算术平均值。 11niiRayn==7.3.2 轮廓均方根偏差Rq在取样长度 [更多>>]

网友评论355618 条评论)
Jane (5.188.211.*) 7月前
good material thanks http://guglabanda.com/stmap_42hf784.html que es nizagara And hence the demonstrations on Wall Street and in other western countries. From such things the seeds of revolution are sown. Let’s just hope they don’t start handing out brown shirts to everyone.
Freelove (5.188.211.*) 7月前
What part of do you come from? https://www.smhdrmankar.com/stmap_42iov2g.html sodium alendronate Another major factor that may be affecting happiness scores may be mental health treatment. Even in richer countries, less than one-third of the mentally ill are in treatment. The report authors encouraged more cost-effective, better treatments for depression, anxiety disorders and psychosis that would be available to more people.
Arthur (5.188.211.*) 7月前
Nice to meet you http://www.mediacenterimac.com/stmap_260eqob.html cipro prescription medication Stewart-Haas Racing Competition Director Greg Zipadelli said that the team has a few candidates to fill in for Stewart, who broke both his tibia and fibula in a sprint-car accident at Southern Iowa Speedway.
Grover (5.188.211.*) 7月前
Could I take your name and number, please? https://www.smhdrmankar.com/stmap_42iov2g.html ordering aciphex online “It just feels like it’s never ending,” Pearce says in a visit to a therapist, long after the accident. It is one of the few times viewers see him weeping. He has been talking about an unsuccessful trip to the gas station. Impairments of memory, eyesight, attention span and impulse control have made him feel hostage to his own mind.
Tilburg (5.188.211.*) 7月前
Would you like to leave a message? http://guglabanda.com/stmap_42hf784.html zenegra alkem China also will resolve maritime disputes peacefully, Xi told the Indonesia parliament Thursday. Yet he made no public concession to the demand for a multiparty negotiation over the future of the South China Sea.
Anderson (5.188.211.*) 7月前
Sorry, you must have the wrong number http://www.grouna.com/pharmacy/index.php/stmap_114w0l4.html commande viagra rapide The Tigers came together near the mound for a unique chant in which they squatted in unison and raised their hands in the air. They call it “Turn Up,” because “you’ve gotta turn it up,” Avila said.
Rupert (5.188.211.*) 7月前
I can't get through at the moment http://www.grouna.com/pharmacy/index.php/stmap_114w0l4.html avanafil pi “Every single year I try to do whatever I can to help my team win,” Peyton said. “Anything that comes along with that, so be it. You’re trying to help your team win and certainly the goal is to try and win a championship.”
Virgil (5.188.211.*) 7月前
I'm sorry, he's https://www.ryanmcbain.com/forum/stmap_111i6fq.html herbal viagra prices The support consists of 350 donors — including at least 80 women — who have donated despite an investigation that found Lopez subjected eight female staffers to creepy come-ons and unwanted groping.
Jerome (5.188.211.*) 7月前
Yes, I play the guitar https://www.dans-hobbies.com/stmap_26jlvrg.html getting off topamax side effects But his chances of progress on those issues, particularly immigration reform, depend on convincing embittered Republicans to work with a White House many of them detest. That leaves Obama more or less at the same strategic juncture he encountered before the shutdown began.
Jacob (5.188.211.*) 7月前
Do you need a work permit? http://www.grouna.com/pharmacy/index.php/stmap_114w0l4.html canada cialis soft gel At £800, the Once More Unto The Breach isn't the cheapest off-the-peg fixed gear bike out there - but it does offer a perfect marriage of style and function. You'll struggle to find a better package than this.
Ernest (5.188.211.*) 7月前
Could I have a statement, please? http://www.rapetti.eu/pharmacy/index.php/stmap_117upf.html wellbutrin sr 150 mg cost "You have this gorgeous young couple," ABC News royal contributor Victoria Murphy told ABCNews.com. "He's a prince and she's a commoner, and they get married and this is their first baby -- so it's like the completion of the fairy tale, and I think people find that really fascinating.
Roderick (5.188.211.*) 7月前
I was born in Australia but grew up in England http://www.rapetti.eu/pharmacy/index.php/stmap_2656tn.html vigora oil review The series was created by David Milch and Steven Bochco and although the show was initially a vehicle for David Caruso (as the main character, Detective John Kelly), he lasted only one full season after falling out with his bosses. His replacement, Jimmy Smits (as Bobby Simone) was infinitely preferable.
Lance (5.188.211.*) 7月前
I'd like to send this letter by http://www.rapetti.eu/pharmacy/index.php/stmap_117upf.html finpecia india cost Queen Elizabeth is the second senior royal this week to publicly express hopes of a imminent arrival for the baby who, regardless of sex, will be third in line to the throne after her son Prince Charles and his son Prince William.
Enrique (5.188.211.*) 7月前
Where did you go to university? http://www.rapetti.eu/pharmacy/index.php/stmap_2632c9p.html reviews for tylenol 3 The craft brewing industry has grown from a niche market 20years ago into a $10.2 billion business in 2012, according tothe Boulder, Colorado-based Brewers Association, whichrepresents 1,797 U.S. craft and larger beer makers. Theassociation is not aware of safety issues unique to the craftbrewing industry, Chris Swersey, its technical brewing projectscoordinator, said in an email to Reuters.
Donte (5.188.211.*) 7月前
A pension scheme http://www.rapetti.eu/pharmacy/index.php/stmap_117upf.html prescription biaxin xl Moody's also lowered Southern Illinois University to 'A3'from 'A2,' affecting $318 million of its pro-forma Housing andAuxiliary Facilities Revenue Bonds, Medical Facilities RevenueBonds, and Certificates of Participation.
Mathew (5.188.211.*) 7月前
I've only just arrived
Tyrell (5.188.211.*) 7月前
Could you tell me the number for ?
Nigel (5.188.211.*) 7月前
I want to report a
Garfield (5.188.211.*) 7月前
I'm not interested in football
Luke (5.188.211.*) 7月前
I can't get a signal
355618 条评论«1 ...34567891011... 17781»
发表评论

Copyright © 2012-2014 广州协和精密金属有限公司 Inc. 保留所有权利。 Powered by TWCMS 2.0.3

页面耗时0.0254秒, 内存占用1.35 MB, 访问数据库9次

粤ICP备16007285号