查询词典 helical surface

The new approach of design of high contact ratio of face gear drive with good dynamic performance are based on application of profile crowning for both tooth surfaces and longitudinal crowning for helical pinion surface.

这一新办法的设计的联系比面对齿轮传动具有良好的动态性能的基础上的应用简介加冕为齿面和纵向加冕螺旋齿轮表面。

A strand reciprocator (30) is mounted to guide the strand from edge to edge of the package and to lay the strand in a helical pattern on the package surface (20) as the package (19) rotates.

丝束往复抖动器（30）被安装成在卷装（19）转动时从卷装的一边到另一边地引导丝束并呈螺旋形型式地将丝束铺放到卷装表面（20）上。

When end surface is neglected, the reflective energy will return to the filament efficiently if the filament is at the centre axis of the columniform lamp shell. 3 Compared with the straight tungsten filament that has a smooth surface, the helical one obtains higher absorbance which can achieve 0.6~0.7 under the actual screw pitch measurement.

当灯的管径为10 mm，而灯丝外径为1.5 mm时，节能可达12%到13%。2）对圆柱形灯外壳，在不考虑端面影响时，光源的灯丝若处于外壳的中心轴上，则反射的能量会有效地返回灯丝。3）螺旋结构的灯丝比表面光滑的直钨丝有更高的吸收率，灯丝绕成螺旋后在现行的螺距尺寸下吸收率能达到

The steam generator, in the incorporate type of the high-temperature gas-cooled reactor, should be of the compact structure, the least heating surface and the higher power density in order to decrease the volume of the initial-stress concrete pressure vessel, there by the steam generator with the uniflow multi-start helical coiled tubes is used generally for it possessing all these characteristics.

该下载资料由本站会员上传，如果侵犯了您的权力，请通知我们，将立即删除！摘要在采用一体化布置的高温气冷堆中，为了使预应力混凝土压力容器体积不致过大，蒸汽发生器应尽量紧凑，严格限制受热面空间布置，并要求其具有较高的功率密度。因此，一体化布置的高温气冷反应堆主要选用直流型多头螺旋管式蒸汽发生器。

The steam generator, in the incorporate type of the high-temperature gas-cooled reactor, should be of the compact structure, the least heating surface and the higher power density in order to decrease the volume of the initial-stress concrete pressure vessel, there by the steam generator with the uniflow multi-start helical coiled tubes is used generally for it possessing all these characteristics.

在采用一体化布置的高温气冷堆中，为了使预应力混凝土压力容器体积不致过大，蒸汽发生器应尽量紧凑，严格限制受热面空间布置，并要求其具有较高的功率密度。因此，一体化布置的高温气冷反应堆主要选用直流型多头螺旋管式蒸汽发生器。

The steam generator, in the incorporate type of the high-temperature gas-cooled reactor, should be of the compact structure, the least heating surface and the higher power density in order to decrease the volume of the initial-stress concrete pressure vessel, there by the steam generator with the uniflow multi-start helical coiled tubes is used generally for it possessing all these characteristics.

资料为硕士论文，包括完整计算过程，及相关设计图纸，推荐下载！摘要在采用一体化布置的高温气冷堆中，为了使预应力混凝土压力容器体积不致过大，蒸汽发生器应尽量紧凑，严格限制受热面空间布置，并要求其具有较高的功率密度。因此，一体化布置的高温气冷反应堆主要选用直流型多头螺旋管式蒸汽发生器。

Materials and Methods Helical CT was performed with 3.0mm slice thickness and 1.0～1.2 pitch in 10 normal subjects and 36 patients with upper airway diseases. In the healthy group, the upper airway shaded surface display was processed by using different reconstruction interval (1.0～3.0mm) and upper threshold (0～-900HU), while in the patient group, SSD, RaySum and integrated 3D images were made respectively.

材料与方法对10例正常和36例上气道病变的患者进行轴位螺旋CT扫描，层厚3.0mm，正常组采用不同重建间隔、阈值作气道表面遮盖法重建，病变组分别作气道SSD、RaySum重建和叠加成像。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失