查询词典 annular

The annular supporting excavations increase with the popularizing of rotundas and sphere buildings.

随着圆形平面建筑物和球形建筑物的广泛使用，环形的基坑支护结构也日益增多。

This paper developed an equation of differential pressure and Reynolds' numbers for pipe and annular flow, and presened a method of accurate calculation of rheologic parameters.

本文推导了管流和环空流动的压降公式和雷诺数，提出了精确确定流变参数的计算方法。

For tin, tin/lead reflowed, or solder coated surfaces, nonwetting is only permitted outside the minimum solderable area or annular ring requirement.

凡作为焊锡连接功能之各种导体表面，如纯锡面，以熔融之锡铅面，焊锡皮膜面等均不允许出现&不沾锡&情形。

By means of its advanced science and technology and modern management system, Fita has become a modern enterprise which integrates the high-grade ,high-precision and adcanced technical equipments ,modernized production technology and the taper shank twist drills from Diameter 6mm to120mm ,and simultaneously manufactures various kinds of taper-shank inner-cooling twist drills, parallel-shank twist drills, carbide-insert, reamers, rapid drills throw-away insert, formed tools ,annular cutter and non-standard tools.

公司依靠先进科技支撑和现代化管理，成为以生产高速工具钢Ф6mm—Ф120mm系列锥柄麻花钻为主，兼生产各种规格锥柄油孔麻花钻、直柄麻花钻、镶合金刀具，各种机用手用铰刀、快速钻头、成型刀具、空心钻及各种非标准刀具设计制造于一身，融高精尖技术设备、现代化生产工艺、标准化流程式管理为一体的现代企业。

Batteries also power the alternative annular cutting tool pipe severance method.

蓄电池也为备用环空切割工具管分离方法提供了电源。

A gas-air premixing burner for gas turbines includes an air swirler and an annular burner tube surrounding a bluff centerbody.

一种用于燃气轮机的燃气-空气预混合燃烧器，包括空气旋流器(114)和围绕非流线型中心体的环形燃烧管。

Process combining precision punching die with annular pressing boards and teeth edges and forging press was adopted to improve punching quality of automotive bracket.

为提高汽车支架的冲裁质量，采用了普通锻压机与齿圈压板式精冲模具组合的生产工艺，并对冲裁间隙、凸凹模工作尺寸、压边圈、齿形和尺寸等主要工艺参数进行了计算与选取，生产出了精度高、质量好的汽车支架精冲产品。

The results show that the tangential velocity distribution in the annular space shows a typical feature of strongly swirling flows and it consists of quasi-free vortex area and quasi-forced vortex area.

由于流体与双侧壁面之间的摩擦造成能量损失和湍流能量耗散，导致最大切向速度不断衰减且位置沿轴向向下逐渐向提升管外壁移动，同时涡量传递造成外部的准自由涡区逐渐增大，内部的准强制涡区逐渐缩小。

And an annular region of high particle concentration exists between the center and the bed wall.

在下行管内，颗粒浓度和颗粒速度的径向分布和提升管相比要较为均匀，而且在下行管中心区域和近壁区域之间存在一高颗粒浓度环区。

Methods Mitral annular motion in 35 cases of normal subjects form apicial four-chamber view and two-chamber view were detected with DTI-M mode.

应用DTI-M型技术检测35例正常人心尖四腔观和二腔观二尖瓣环后瓣叶外侧缘的运动。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。