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The tongue-and-groove articulation between the quadrangular cartilage and the maxillary and palatine crest deserves special mention.

特别值得一提的是四边形的软骨和上颌骨及腭嵴之间的榫槽衔接。

The results show that the fracture mode of blade is vibration fatigue and the main cause of initiation of fatigue crack is the mismatch between rabbet and tongue-and-groove.

结果表明，叶片的断裂模式为振动疲劳，叶片榫头与榫槽配合不当是萌生疲劳裂纹的主要原因。

According to the theoretical results, the sizes of groove and the curvature radius of bend can be reasonably chosen in design.

首先，本文在第二章采用耦合模理论分析了GNRD波导E面弯头的传输特性。

On the basis of nonlinear FEA code ANSYS/LS-DYNA, rail rolling process of universal rolling unit were simulated by 3D large deformation thermal-mechanical coupled elastic-plastic FEM. And the deformation shape of the work piece, deformation parameters and cross dimensions for each pass were obtained and stress,stain distribution and metal flow in rolling process of typical passes were analyzed in detail. Analyzed typical pass stress and strain distribute, rolling stress and deforming in universal pass last groove in detail,discussed the effect regularity of residual stress distribution and size to safely using rail, detailed to expound universal pass to railhead tread circular arc process.

本文基于ANSYS/LS-DYNA非线性显式有限元软件，以60kg/m的重轨为研究对象，采用全三维弹塑性热力耦合的有限元方法研究了重轨在万能轧机组中的变形过程，得到了轧件在孔型中的延伸情况、各道次轧件的变形参数，分析了典型道次的应力、应变分布，并详细分析了全万能成品孔型中轧件受力和变形情况，讨论了残余应力的分布及大小对钢轨安全使用的影响规律，详细地阐述了全万能成品孔型对轨头踏面圆弧的加工过程。

The triangle file makes a groove, and then the rattail file fits in it and doesn't slide around.

三角锉刀是个开始，然后圆锉刀使它合适不在周围滑动。

A man gets in a groove in New York. It takes the West to put a razor-edge on him.

在纽约，人很容易就会墨守成规，裹足不前。

Main production tools, milling, boring knife, groove cutter, reamer, and numerical control blade.

主要生产车刀、铣刀、镗刀、槽刀、铰刀、和数控刀片。

The needle of a record-player moves along the groove in the record.

唱机的针头沿着唱片的纹路前进。

TE mode diffraction characteristics of surface-relief grating having different symmetrical profiles (rectangular, sinusoidal, triangle, trapezoidal profile) are calculated with rigorous second order vector couple-wave theory, the law of diffraction efficiency as a function of grating groove depth are analyzed: in a specific condition, diffraction efficiency might be close to 100%.

本论文采用严格的二阶矢量耦合波理论计算了矩形、正弦、三角形、梯形等对称面形蚀刻光栅的TE模偏振的衍射特性，分析了光栅的衍射效率随着沟槽深度变化规律。

A 3-4 regular fruit surface of the longitudinal groove.

果面常具3－4条纵沟。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。