查询词典 radius

Then calculates clearances in radius direction for all kinds of nonparallel degree between input shaft and output shaft, and presents conditions of adjustability. Applies the experimental device, which is developed for this paper research, as example, introduce calculation formulation of overlapping coefficient and pressure angle while the distance between two centers is uncertain, in this way, we get the range of the center distance.

以本论文的实验研究装置为例，引入了中心距不确定状况下的重迭系数、压力角等计算公式，以两齿轮啮合时的分度圆不能相割为最小中心距，以两齿轮啮合的重迭系数不小于1为最大中心距，从而得到相应的中心距范围。

The reasonable selection about the parameters of radius-length ratio and speed of small-type oilless compressors was given.

通过对小型无十字头压缩机的受力分析和试验研究，阐述了重要结构参数径长比λ对活塞环的密封效果及使用寿命的影响，对小型全无油压缩机的径长比、转速的合理选择进行了分析。

Experimental research on the oilless lubrication compressor;2. The reasonable selection about the parameters of radius-length ratio and speed of small-type oilless compressors was given.

通过对小型无十字头压缩机的受力分析和试验研究，阐述了重要结构参数径长比λ对活塞环的密封效果及使用寿命的影响，对小型全无油压缩机的径长比、转速的合理选择进行了分析。

Results All of the 8 cases were abnormal in ultrasonography. There were more than 2 parts of anomalies in 7 cases (7/8), heart anomalies in 5 cases (5/8), holoprosencephaly in 2 cases (2/8), single umbilical artery in 2 cases (2/8), Dandy-walker syndrome in 1 case (1/8), and other anomalies such as cleft lip and cleft palate, diaphragmatic hernia, omphalocele, esophageal atresia, malformation of radius, club hand, club foot. Four cases were polyhydrmnios and 3 cases were IUGR.

结果 8例18三体综合征胎儿声像图均表现为胎儿结构异常，7例(7/8)超声表现为两个部位以上畸形，5例(5/8)合并心脏畸形，2例(2/8)为全前脑，2例(2/8)为单脐动脉，1例(1/8)为Dandy-walker综合征，其他畸形还有唇腭裂、膈疝、脐膨出、食道闭锁、桡骨发育不良、手畸形、马蹄内翻足、小下颌。4例(4/8)合并羊水过多，3例(3/8)宫内发育迟缓。

Ophthalmometer is an Optical instrument that is capable of measuring the corneal radius of man's eyeballs by means of optics.

眼角膜曲率仪又称角膜计，是应用光学方法测量人眼眼球的一种光学仪器。

Methods From December 2004 to May 2005, 9 cases of bone defectwere repaired with Osteoset pellets; bone defect was caused by benign tumor inlimbs, including 3 cases of fibroma xanthomas in humerus(1 case) and acetabulum (2 cases), 2 cases of bone cysts in humerus(1) and radius(1), 1 case of nonossifying fibroma, 1 case of ossifying fibroma and 2 cases of osteofibrous dysplasia in femurs.

2004年12月～2005年5月，采用Osteoset颗粒作为骨移植材料治疗9例四肢良性肿瘤性骨缺损，其中肱骨黄色纤维瘤1例，髋臼黄色纤维瘤2例，肱骨骨囊肿1例，桡骨骨囊肿1例，股骨非骨化性纤维瘤1例，股骨骨化性纤维瘤1例，股骨骨纤维结构不良2例。

In this paper, the stress and strain distribution, tube wall thinning and the cross section ovalization in Aluminum alloy thin-walled tube NC bending with small bending radius have been investigated through experimental method combined with finite element method and theoretical analysis.

本文采用实验法，并结合有限元模拟和理论解析法，研究了与铝合金薄壁管小弯曲半径数控弯曲成形质量密切相关的应力应变分布、壁厚变化和截面畸变等关键问题。

The effects of some parameters, such as mandrel ball numbers, mandrel extension length, bending angle, lubrication condition of pressure die, relative bending radius and material, on ovalization have been investigated by experimental method, and the effective methods to reduce the ovalization are proposed.

文章采用实验法，研究了芯头个数、芯棒伸出量、弯曲角度、压块润滑状态、相对弯曲半径、材料等因素对截面畸变的影响；并提出了减小截面畸变的有效措施。

The results show that increasing the ball numbers and mandrel extension length may reduce the ovalization, but leads to more remarkable wall thinning; the ovalization becomes more severe with the larger bending angle; the smaller the relative bending radius, the larger the ovalization is; the ovalization and wall thinning degrees are both smaller in the case of pressure die with dry lubricant; and under the same bending condition, the ovalization of LF2M tube is larger than the one of 1Cr18Ni9Ti tube.

结果表明，增加芯头个数与芯棒伸长量都能减小弯管的截面畸变，但两者都导致弯管壁厚减薄量增大；随着弯曲角度的增加，截面畸变越严重，相对弯曲半径越小，无芯棒与芯头支撑段弯管的截面畸变愈严重；在压块无润滑情况下，弯管的截面畸变和壁厚减薄量都小，并且在同等弯曲条件下，1Cr18Ni9Ti弯管的截面畸变小于LF2M弯管。

The relation between different openings radius and overbreak as well as underbreak are studied. According to these, the relation between RMR and Q is built. The linear relation and the logarithm linear relation between RMR and Q and overbreak as well as underbreak are gained.

论文对洞室围岩的RMR分类和Q分类与超欠挖之间的关系进行详细的研究，研究不同开挖洞径与洞室超欠挖之间的关系，并由此建立了RMR分类和Q分类之间的关系，得出围岩的RMR分类和Q分类与洞室超欠挖呈线性关系或对数线性关系。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。