口径

小口径管对接焊缝X射线透照工艺参数的确定

Determination of Process Parameters for X-ray Radiographic Examination of Butt Weld of Small Bore Pipes

试验采用大口径HP-快速GC残留溶剂柱为分离柱，对顶空平衡温度、平衡时间对残留有机溶剂乙酸乙酯测定的影响进行了分析研究。

A wide bore HP-fast GC residual solvent column was performed , and the effects of the equilibrium temperature and equilibrium time on the determination of ethyl acetate were studied .

在这个问题上我们口径一致。

We spoke as one on this matter .

口径为120毫米的迫击炮的射程是1.8万码。

The 120mm mortar has a range of 18,000 yards

咱俩说话口径要一致。

We two must speak along the same lines .

我们必须口径一致。

We must all say the same .

用同等口径的动静脉吻合。

The caliber of the vein and the artery to which it was anastomosed was similar .

进料口径大可快速粉碎进料

Its large caliber enables fast and pulverizing of material .

注：艺术表演团体统计口径调整为含系统内、系统外两部分。

Note : Art performance troupes include within and outside of the system .

他仓促地叫了一声，便扳开几支大口径短抢的机头，作好防守准备

With this hurried adjuration , he cocked his blunderbuss , and stood on the offensive .

线阵列X射线探测器检测小口径钢管对接焊缝

Inspection of Circumferential Weld of Small Tube By X-ray Line Scan Detectors

大口径管状Nd∶YAG放大器

Tubular Nd ∶ YAG Amplifier of Big Caliber

但由于统计惯例和一些统计口径的问题，房地产业增加值占GDP的比重被严重低估。

But because of the problems in statistic practice and criterion , its added value is heavily devalued .

500m口径球面大射电望远镜台址BP神经网络优选

BP Neural Network Model Applied to the Sites Optimization of Five-Hundred-Meter Aperture Spherical Telescope

本文首先对口径耦合馈电方式在天线RCS减缩中的应用进行了仿真分析。

Firstly , the simulation is carried out on the application of aperture coupled microstrip antenna .

用于ps脉冲放大的大口径放电泵浦KrF激光器

Large aperture discharge-pumped KrF laser for picosecond amplification

小口径高增益Ku波段平面天线

Small Aperture , High Gain Ku Band Planar Antenna

关于DBS小口径接收天线选型几个问题的探讨

Discussion on the Choice of Small Aperture DBS Receiving Antenna

大口径KDP晶体高效率倍频的实验研究

Experimental research on efficient frequency doubling using a large aperture KDP crystal

应用Talbot效应检验大口径光束的准直性

Measurement of Large Beam Collimation by Using Talbot Effect

神光装置φ200mm口径KDP晶体高功率倍频激光系统

φ 200 mm Large Aperture KDP Crystal High Power Frequency Doubling Laser System

大口径UPVC管道的施工与维修

Installation and repairs of big size UPVC pipe

在ANSYS环境中，首先建立了某7m口径圆抛物面天线的数字化模型；

In this paper a digitized model has been established for a 7m diameter circular paraboloid antenna firstly under the ANSYS circumstance ;

利用时域有限差分（FDTD）方法作为严格电磁计算模式，分析了有限口径衍射微柱透镜衍射效率与透镜F数的关系。

The rigorous analysis of finite aperture diffractive micro-cylindrical lenses was presented by using a rigorous electromagnetic computational model - the two-dimensional finite-difference time-domain ( FDTD ) method .

高表观密度PVC树脂是目前研制大口径管材专用树脂的主流方向，球形PVC树脂并未大规模生产；

PVC resin with high bulk density is the main direction for producing the special PVC for pipe with great diameter , spherical PVC hasn 't ever been produced wholesale .

提出了一种基于PSD的导轨直线度的检测方法，保证了五棱镜扫描法检测大口径准直波前的精度。

The method to test the straightness of slideway based on PSD is presented , which ensures the accuracy of the scanning pentaprism method .

用数字化技术摄取头颅侧位片，应用NIHimage软件测定骨性结构、软组织结构、舌骨位置、咽部口径参数等23项。

Cephalometric measurements were taken by computer software ( NIH Image ), 23 variables were used concerning bone structure , soft tissue structure , hyoid bone position and upper airway dimension .

目的观察国人正常耳前庭小管（Vestibularaqueduct，VA）外口CT影像，并探讨其外口径正常参考值。

Objective To study the CT images of the external aperture of vestibular aqueduct ( VA ) in order to establish its reference value of the normal diameter in Chinese .

对锅炉、电站用大口径厚壁无缝钢管的超声检测中若干问题进行了探讨，包括探头声压分布、K值及钢管曲率影响等。

Some problems in automatic ultrasonic inspection of the large diameter thick-wall steel seamless tubes for boilers and power plants are discussed including sound distribution , K value and tube curvature effect on inspection , etc.

本文应用时域有限差分法（FDTD）分析了双极化口径耦合多层微带贴片天线。

A direct three dimensional finite difference time domain ( FDTD ) method is applied to the full wave analysis of dual polarization aperture coupled microstrip antenna .