Methods 20 fresh extracted,same size in mesiodistal and height of cusp,1st up premolars were taken for this study.

磨除近遠(yuǎn)中鄰面欧美三级自拍视频，使之近遠(yuǎn)中徑為 4mm 啪啪啪啪网站，在頰牙尖釉質(zhì)層下制備 4mm× 4mm× 3mm的洞型并隨機(jī)分成兩組。

Objective: To explore valuable methods and landmarks for locating cochlea, and provide anatomic data for drilling petrous pyramid during the middle cranial fossa approach.

目的：探討耳蝸的定位方法和定位標(biāo)志一级黄色毛片在线A视频免费播丶放，為顱中窩手術(shù)入路中磨除巖尖及耳蝸在顱底外科的臨床應(yīng)用提供解剖學(xué)資料精品国产的一区二区A丨换脸。

objectivethe aim of this study was to evaluate the curative effects of the modified fixed reverse twin-block appliance combine edgewise on treatment of adult angle ⅲ anterior crossbite.methodsthe appliance was used on 15 adult subjects with angle ⅲ malocclusion and then compared clinical character and x-ray cephalometry before and after treatment.resultsafter 4 months treatment the appearance and profile were improve evidently, mandible retrusion was to lead molar and canine were angle i,overjet and overbite were normal.

目的：應(yīng)用改良固定反式雙阻板矯治器（twin-block appliance，tba）聯(lián)合方絲弓技術(shù)矯治成人angleⅲ前牙反牙合免费在线黄网站视频，為成人前牙反牙合提供新的治療方法国产精品久久久久精品18沈嶣。方法：矯治成人患者15例，進(jìn)行臨床表現(xiàn)及相關(guān)硬組織測量www.A片16。結(jié)果：固定反式tba戴用4個月后下頜明顯后退又粗又大又有硬的黄色短视频,,看湿下面。所有患者在未拔牙的情況下前牙反牙合均得到有效治療，磨牙及尖牙均達(dá)到i類關(guān)系色色66精品。但上頜僅為牙及牙槽的代償性變化妓女在线观看网站。

The Optimized Design and Reshaping of Profile of Skiving Cutter with Plane Flank for Gleason Gear

由于弧齒錐齒輪尖齒刮削刀盤的切削刃采用斜角直線造形法，其造形誤差和重磨誤差大免费看美女的全部隐私视频，本文提出了優(yōu)化造形的方法av永久天堂一区二区三区香港。

Magic eye is used to control the position and symmetry of sharp angle blunted tool.

4由電眼控制的磨鈍尖角的工具的位置和對稱性。

As hounds and lusty youths set upon a wild boar that sallies from his lair whetting his white tusks- they attack him from every side and can hear the gnashing of his jaws, but for all his fierceness they still hold their ground- even so furiously did the Trojans attack Ulysses.

像一群獵狗和精力充沛的年輕人黄色视频,三级片，圍住一頭野豬，猛撲上去日日摸夜夜摸人人狠狠摸，而野豬則沖出茂密的灌木免费欧美性爱一级网站，它的窩巢，在彎翹的顎骨上磨快了雪白的尖牙利齒中文特级熟妇一级系列视频，狗和獵人從四面沖來色色资源网址，圍攻中可以聽到獠牙咋咋的聲響――然而，盡管此曾來勢兇猛男人的天堂精品一区二区AV，他們卻毫不退讓91专区。

Ln this factory main production the small series jaw typebreaker,the hammer type breaker,the ball mill,mix thepytty to grind,v,the U minecar,the elevator,the conveyer and the correlation wea-resistngfitting and the mechanicai shovel,the excavator,the power shovel16

本廠主要生產(chǎn)中小系列鄂式破碎機(jī)、錘式破碎機(jī)免费版观看无毒黄片视频、球磨機(jī)在线播放视频国产区、混泥碾、V三级色网站在线、U型礦車大香蕉日韩亚洲网在线播放、提升機(jī)、皮帶運(yùn)輸機(jī)及相關(guān)耐磨配件和鏟車www.cn.com黄色视频、挖掘機(jī)日木一级坐爱片、電鏟（16立方米产国69囗交视频国产、10立方米、4立方米）配鏟尖欧美视频黄页播放大全、斗齒日韩美女偷自拍视频网站在线观看免费、斗提梁以及各種鑄造磨球近120多個品種。

The posterior length of the dental arch changed significantly (P.001). The maxillary and mandibular arch shapes didn't change before and after treatment.

結(jié)果：上wwwjjzz、下牙弓寬度在矯治前黄污视频免费网站、后有顯著差異(P.05)；上爱搞精品、下牙弓長度治療前超碰在线免费黄色、后尖牙長度變化不明顯，而第一磨牙長度具有顯著性差異(P.001)小蝌蚪www；治療前黄页网站在线免费播放器、后，上国产午夜AAAA福利片、下牙弓形狀無明顯變化亚洲中文字幕va毛片在线。

Basic structure and operation principle of the parallel grinder for helical drill point grinding is presented.

給出螺旋面鉆尖刃磨機(jī)床的基本結(jié)構(gòu)及其工作原理。

The paper discusses the principle of automatic loading and unloading system of CNC drill point grinder,and design an reliable PLC controlling system through analyzing the mechanism and the process of load-ing and unloading.

論述了數(shù)控鉆尖磨床自動上下料機(jī)構(gòu)的原理5566影音先锋在线，通過對上下料機(jī)構(gòu)及過程的分析小黄片大全，設(shè)計了一種合理可靠的自動上下料及刃磨的PLC控制系統(tǒng)。