切线角

There are many methods to measure the circular curved line in circuitry construction survey.

在线路施工测量中，圆曲线测设方法有很多，通常采用偏角法或切线支距法。

2At drive than will certainly,driven gear, while having the more same sizes, hyperboloid have diameter not larger of gear wheel not initiative than corresponding spiral awl gear wheel, intensity and bigger initiative gear wheel axle and bearing rigidity of higher teeth of a cogwheel.

螺旋角是指在锥齿轮节锥表面展开图上的齿线任意一点A的切线TT与该点和节锥顶点连线之间的夹角。在齿面宽中点处的螺旋角称为中点螺旋角(图5—4)。通常不特殊说明，则螺旋角系指中点螺旋角。双曲面齿轮传动比为

Due to the time limited, corner and crop marks in this just does not have any imposition of page.

因时间有限，角线及裁切线在此没有注明，只提供拼版的页面方式。

Pressure Angle is the angle between a line tangent to an involute and a radial line through the point of tangency.

压力角：压力角是花键的渐开线齿廓的切线与通过切点的半径所组成的夹角。

Setting out the main way to coordinate, polar coordinate method, angle of law, such as tangent offset method.

放样的方法主要要坐标法、极坐标法、偏角法、切线支距法等。

The following values was measured: angle of cusp line between the second and third molar, impact state and depth, distance from Rickett's Xi to distal cusp of third mandibular molar along the occlusal plane, anterior border of ramus to the third mandibular molar, distance from projection of distal contact point of maxillary third molar to intersection of pterygoid vertical on occlusal plane.The change between pre-and post-treatment was calculated and analyzed with SPSS10.0 software package.α angle, Xi-LTM, R-LTM, R-LTM were tested with independent-sample t test, impact state and depth was tested with Chi-square test. Influence of age on the values was also evaluated.

测量治疗前后的第二、第三磨牙牙尖连线角度、阻生状态和深度，Rickett's Xi点到下颌第三磨牙远中尖距离、下颌支前缘到第三磨牙远中尖距离、翼上颌裂切线到上颌第三磨牙后缘的距离及上、下磨牙的前移量，计算治疗前后各变量的差值，采用SPSS10.0软件包进行统计学分析，α角、Xi-LTM、R-LTM、R-LTM用t检验，阻生状态和深度用χ^2检验，比较年龄因素对各指标的影响。

Here we present a case of 21 year-old male who suffered from recurrent swelling in left side of mandible which had received surgery for ossifying fibroma in another hospital when he was 19 years old. Obvious facial asymmetry was noted but no sensory dysfunctions were detected. The lesion showed well-demarcated, multilocular radiolucency but radiopacity centrally. We applied segmental resection via extra-oral approach and reconstructed with anterior iliac crest bone graft. After removal of MMF in six week, the wound healed well and joint function was good without malocclusion. After follow-up of one year, no recurrences were noted.

本病例为－21岁之男性，在19岁时因为左下颚骨角区肿大在某医院接受外科手术处理，术后病理报告为骨化纤维瘤，因为复发的肿胀而来本院寻求治疗，临床检查并无疼痛及下唇区感觉异常的问题，放射线影像为周界清晰，多腔室放射透过性合并中央放射不透过性之不规则小块，手术方式为从口外颚下切线，做下颚骨片段式切除，并以肠骨脊海绵骨移植修补骨缺损加以颚间固定六周，术后伤口恢复及愈合良好，颚骨关系稳定无咬合异常的情况，无张口受限的问题。

Two different ice thickness and five different tangent angles of water line are adopted.

实验中进行2种不同冰厚度和5种不同水线切线角的组合。

Guide vanes located either before or after the fan convert the tangential component of the velocity head into static head.

导向浆叶安装在风机的前面或者后面把速度压力值的切线角值转换为静压力值的切线角值。

Everyone was required to lake a full-length standing X-ray film of the lower extremity. The hip-knee-ankle angle, femorotibial angle and tibial plateau-tibial shaft angle were measured on their anteroposterior radiographs. while the posterior slope of tibial plateau was measured on their lateral radiographs based on three reference lines: anterior tibial cortex tangent line, tibial proximal anatomical ink acid posterior tibial cortex tangent line.

受试者拍摄下肢站立位全长X线片，并按要求测量髋－膝－踝角、胫股角和胫骨平台内翻角，再分别用胫骨中上段前侧骨皮质切线、胫骨中上段轴线和胫骨中上段后侧骨皮质切线作为参考线测量胫骨平台后倾角。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。