平面规

Two rules joined together as adjustable arms used to measure or draw angles of any size or to fix a surface at an angle.Also called In this sense, also called bevel square

斜角规：组合在一起作为可调节臂的两把刻度尺，用以测量或描划任意大小的角或以某一角度固定一平面也作在此意义上也可称作 bevel square

The raw data was processed by using axial, coronal and double oblique multi-planar reformation; Images obtained were graded in terms of quality with a 5-point scale(5=excellent, 4=good, 3=fair, 2=poor, and 1=nondiagnostic). In grading image quality at axial MPR, The radiologic specialists focused on the subarcuate fossa, tendon of tensor tympani, facial recess, vestibular aqueduct and pyramidal eminence, In grading image quality at coronal MPR, attention was given to the scute, crista transversa, fenestra cochleae, lateral malleal ligament and snake eyes signature of cranial nerve, In the grading of the image quality at double oblique MPR, the radiologic specialists concentrated on the malleus, incus, stirrup bone, upper bony semicircular and aquaeductus fallopii, and then to implement statistical analysis. In order to choose the minimum tube current values and the maximum pitch that can satisfy the diagnosis request, image quality of axial, coronal and double oblique reformation images was compared with different tube current groups. 15 ears of volunteers were used to test the validity with the scanning parameter. Subsequently noise, MTF and dose length product were measured by phantoms in different tube current and pitch, the parameters obtained were compared and taken into statistics analysis.

扫描模式使用临床常用的颞骨螺旋扫描方式：管电压120 kV，准直宽度20×0.6 mm，视野200 mm，重建矩阵512×512，旋转时间1 s/r，重建层厚0.6 mm，重建间隔0.3 mm，分别改变管电流(380、300、200、160、120和80 mA)和螺距(0.8、1.0和1.2)进行扫描和重建，然后对颞骨进行横断面、冠状面和双斜面多平面重组，于重组后的横断层面图像上选取弓形下窝、鼓膜张肌腱、面神经隐窝、前庭导水管和锥隆起5个解剖结构，冠状面重组图像上选取盾板、横嵴、蜗窗、面神经的蛇眼征和锤骨外侧韧带5个解剖结构，双斜面重组图像上选取锤骨、砧骨、镫骨、上骨半规管和面神经管5个解剖结构，在双盲的情况下由放射学专家分别对各管电流和螺距下扫描的重组图像进行评分，随后进行统计学处理，从中筛选出满足诊断要求的最低管电流值和最大的螺距，分别采用患者25例(15耳)用该管电流值和螺距验证其可行性；然后利用模体分别测试各管电流和螺距下的图像的空间分辨率、噪声及其剂量长度积，并对测试所得参数数值进行比较和统计学处理。

Main contents of the second chapter "art words methods" are introduction of art words, basic writing skills and originality design of chinese and western characters, etc. Main contents of the third chapter "basic components of plane" are spot, strokes and spaces, etc. Main contents of the fourth chapter "format and rules of plane" are symmetry and balance, repitition and group tendency, rhythm and cadence, comparision and change, consonance and unification, breakthrough and variance, etc. Main contents of the fifth chapter "basic design of space of a whole page" are gridding system, visual process of space design, word editing, graph space design, etc. Main contents of the sixth chapter "color planning" are color introduction, surface color system, color and visual psychology, color planning, etc. Main contents of the seventh chapter "plane advertisment design" are newspaper and magazine advertisment design, outdoor and POP advertisment design, etc.

第二章"美术字技法"的主要内容有美术字概说、中外文字体的基本写法、中/外文字体的创意设计等；第三章"平面构成的基本要素"的主要内容有造型基本要素如点、线、面等；第四章"平面构成的形式法则"的主要内容有对称与平衡、重复与群化、节奏与韵律、对比与变化、调和与统一、破规与变异等；第五章"基础版面设计"的主要内容有网格系统、版面设计的视觉流程、文字编排、图形的版面设计等；第六章"色彩计划"的主要内容有色彩概论、表色体系、色彩与视觉心理、色彩设计等；第七章"平面广告设计"的主要内容有报刊广告设计、户外广告设计、 POP 广告设计等。

Results Dual-oblique MPR images clearly display most parts of 10 selected planes. All display rate were 100% except the Superior Semicircular Canal(93.3%).

结果 所选10个双斜位MPR平面均能良好显示相应结构，上半规管显示率为93.3％，其余均为100％。

The length of facial nerve in the perpendicular paragraph was about (10.58±1.20) mm, the length from facia nerve to the surface of mamillary process in the plane of facial nerve and round window niche, from facial nerve in the eminentia papillaris to chorda tympani nerve, from horizontal semicircular canal to the plane of facial nerve paragraph .and from chorda tympani nerve to foramen stylomastoideum were (11.90±1.80) mm,(3.79±0.45) mm.

面神经垂直段长度为(10.58±1.20)mm，面神经圆窗龛平面到乳突表面，面神经锥曲段到鼓索神经、水平半规管到面神经水平段以及鼓索神经起点到茎乳孔的距离分别为：(11.90±1.80)mm，(3.79±0.45)mm，(1.94±0.43)mm，(5.14±0.80)mm。

Extension to current developments in theory and observation. Energy and momentum in flat spacetime; the metric; curvature of spacetime near rotating and nonrotating centers of attraction; trajectories and orbits of particles and light; elementary models of the Cosmos.

本课程同时会探讨现今有关理论与观测之发展、平面时空中的能量与动量、度规、接近旋转与非旋转吸引中心的弯曲时空、粒子与光线之轨道及宇宙基础模型。

The Examination of the Sine Bar for the Petroleum Thread Gage;2. The sine bar is a practical precision measuring implement which can measure indirectly or a machining tool for the precision angle by the sine principle.

正弦规是利用正弦函数原理对精密角度进行间接测量或加工的一种常用的精密量具或工具，常用于测量内、外锥体的锥角及外锥体的大小端直径，也用于测量角度块的角度、孔中心线与平面之间的夹角。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。