1)large aperture大孔径
1.Meanwhile, the following steps should be taken including the revision of the standard index, the increase of perforator evaluation types, an introduction to the evaluation scheme of large aperture and high.通过对SY/T5128《油气井用射孔器通用技术条件》的应用分析,结合射孔器产品的技术发展,并对按APIRP19B要求制作的混凝土靶试验对比验证,对该标准指标进行修订,增加射孔器评价品种,引进了对大孔径、高孔密射孔器的评价方案,规范了产品命名和术语,并应用计量抽样和计数抽样两种评价方案对射孔器评价,以求正确评价射孔器性能。
2.To ensure the quality of large aperture and deep perfusion stake foundation construction, a series of steps are taken according to the key working procedure or where quality problem may happen incidentally, so as to have good effect.为了保证大孔径，深灌注桩基础施工的质量，针对关键，易出质量问题的工序，采取了一系列措施，获得了较好的效果。
3.The principle of the system of interferometer in large aperture image spectrometer has been expatiated.提出了大孔径干涉型成像光谱仪的原理,并展示了攻关样机和实验数据。
英文短句/例句
1.maximum opening diameter without reinforcement不另行补强的最大孔径
2.short focal length (high aperture) lens短焦距(大孔径)透镜
3.Construction Technique for Large Diameter Discharging Tunnel in the Luoxidu Hydropower Plant溪洛渡水电站大孔径排水孔施工技术
4.Construction technology of excavated and cast-in-place piles with a large diameter and an extra depth in karst geology岩溶地质大孔径超深桩挖孔施工技术
5.The Construction Techniques for the Deep-water and Large Aperture Drilled Piles of Hutiaomen Bridge虎跳门特大桥深水大孔径钻孔桩施工工艺
6.Performance Analysis of Large-Aperture Receiving and Selection of Aperture Size in Atmospheric Optical Communications大气光通信中大孔径接收性能分析与孔径尺寸选择
7.LARGE DIMETER AND OVERDEPTH STAKE BASE OF DONE MAN DIG HOLE COMSTRUCTION STUDY IN COMPLICATED LOCAL复杂地层超深大孔径人工挖孔桩施工的探讨
8.Study of Macroporous Ceramic Pipes Prepared in Cold Isostatic Pressing冷等静压法制备大孔径多孔陶瓷管研究
9.Fabrication of diamond films on the interior surface of large hole大孔径内孔表面金刚石薄膜涂层的制备
10.Probe into Large Diameter Direct Drainage Borehole Construction Technology in North China Type Coalmines华北型煤矿施工大孔径直排孔的工艺探讨
11.Effects of Porosity on Gas Permeability and Maximum Pore Size of Fiber Felts孔隙度对纤维毡透气性能和最大孔径的影响
12.large core high numerical aperture fiber大芯径大数值孔径光纤
13.ultra-rapid lens甚大光强[相对]孔径物镜
14.object lens of large relative aperture大相对孔径(摄影)物镜
15.Discussion on Revamping of The Large Diameter Piercing Head of 10MN Vertical Piercing Mill10MN立式穿(扩)孔机大直径扩孔头的改造
16.Measurement of Flat Wavefront by Sub-aperture Stitching Interferometry子孔径拼接干涉检测大口径平面波前
17.Orthogonal analysis on Pore Size of Nanometer Porous Glass纳米孔玻璃介质孔径大小的正交分析研究
18.Study on High Resolution Overlapped Subaperture Imaging Algorithm for High Squint Airborne SAR Processing机载合成孔径雷达大斜视高分辨率重叠子孔径成像算法研究
相关短句/例句
Big hole大孔径
1.This paper deals with the design, research and application of a kind of new technique on the big hole perforation in oil well and forming fissure in oil layer.论述了一种大孔径射孔造逢新技术的设计、研究及应用 ,该技术特别适用于稠油常规开采。
3)big aperture大孔径
1.The newest localization equipment——CT simulator with multilayer and big aperture;最新定位设备——多层大孔径CT模拟定位机
2.Design on drilling instrument of big aperture spiral drilling machine;大孔径螺旋钻机钻具的设计
3.The hole-making technique by using longhole drilling piles of big aperture;大孔径深孔钻孔桩成孔工艺
4)large-diameter大孔径
1.By Using Large-diameter Gas Drainage Borehole Improve Gas Drainage Amount of Haplopore;采用大孔径瓦斯钻孔提高单孔瓦斯抽放量
5)large pore diameter大孔径
1.Preparation of porous anodic aluminum oxide membranes with large pore diameter;大孔径多孔氧化铝膜的制备
6)macropore diameter大孔孔径
1.Study of the effect of macropore diameter on the formation of the bone-like apatite in the carbonate-contained HA/β-TCP ceramics;大孔孔径对含CO_3~(2-)的双相HA/β-TCP多孔陶瓷表面类骨磷灰石形成的影响
延伸阅读
长度计量技术：孔径测量 对於孔的直径的测量﹐有直接测量﹑间接测量和综合测量等测量方法。孔径测量是长度计量技术的主要内容之一。 直接测量 利用两点或三点定位﹐直接测量出孔径的方法﹐也是最常用的孔径测量方法。根据被测孔径的精度等级﹑尺寸和数量大小﹐可以採用能测孔径的通用长度测量工具﹐例如游标卡尺(见卡尺)﹑工具显微镜﹑万能比长仪﹑卧式测长仪(见测长机)﹑卧式光学计(见比较仪)和气动量仪等﹔也可採用专用的孔径测量工具﹐例如内径千分尺﹑内径百分錶和千分錶﹑内径测微仪﹑电子塞规和利用气动﹑光学﹑电学等原理的孔径量仪等。利用槓桿机构测孔﹕此法(图1 利用槓桿机构测孔 )常用於手携式孔径测量工具﹐例如内径百分錶﹑机械式或电学式内径测微仪等。被测孔径尺寸与校对环规孔径之差通过槓桿机构从百分錶﹑机械式或电学式测微仪读出。这类测孔工具的测量孔径范围一般为 10～800毫米﹐其中内径测微仪的测量精确度可达3～5微米。利用斜楔原理测孔﹕此法(图2 利用斜楔原理测孔 )也常用於手携式孔径测量工具。其中用於测量小孔的内径百分錶﹐可以测量直径小至 0.5毫米的孔。被测孔径压缩测头使带圆锥体的测杆移动时﹐从百分錶或测微仪上便可读出孔径的误差。三点定位法适用於测量直径在 3毫米以上的孔。当测杆转动时﹐由固定螺母作用使测杆向前移动﹐通过测杆顶端的带有螺旋形凸台的圆锥体使 3个测头向外移动与被测孔接触。从固定套管和微分筒上的刻度读出被测孔径尺寸。此类孔径测量工具有三爪内径千分尺。利用气动﹑光学﹑电动等原理製成的座式孔径量仪测量高精度孔径﹐必须在接近20℃的恆温条件下进行。光波干涉式孔径测量仪测量孔径的范围为1～50毫米﹐精确度为±0.5微米。 间接测量 先测量与孔径有关的函数﹐再换算出孔径尺寸。主要有下列两种方法﹕利用三点定一圆原理﹐测出被测孔圆周上任意三点的坐标值﹐然后求出方程式2＋2＋D ＋E ＋F ＝0中的係数D ﹑E ﹑F ﹐即可按计算式求得被测孔径﹐此法一般用於带有电子计算机的三坐标测量机﹔用直径已知的滚轮与被测孔壁对滚﹐测出被测孔圆周长﹐然后计算出孔径。此法适用於测量直径大於500毫米﹑具有连续表面的孔。应用此法的测量工具称为大直径测量仪﹐也常用於大型工件的外径测量。
