螺旋

The flow field is more complex because the influence of the centrifugal force and the gravity.

受离心力和重力的影响，螺旋管的流场比较复杂。

Therefore, the research on and applications of screw centrifugal pumps have a very wide future.

因此对螺旋离心泵的研究和应用都有着广阔的前景。

For this reason , the internal flow and performances of screw centrifugal pumps were studied in this paper.

本文针对这一情况研究了螺旋离心泵的内部流动和性能。

The results of research can offer some information to the screw centrifugal pump blades design and the performance improvement.

研究结果对螺旋离心泵叶片的设计和性能的改善提供了依据。

Objective To discuss the application of 16 slice helical CT real time angiography and clinical value in cephalic and cervical vessel.

摘要］ 目的：探讨16排螺旋CT在头颈部血管一次性成像的技术及其临床价值。

Cephalopod mollusk of warm seas whose females have delicate ''.

温暖海洋中的头足类软体动物，雌性有精致的象纸一样的螺旋状壳。

A cross-section of a nautilus shell in Boston shows the spiral of chambers, called camerae, that this cephalopod builds for itself as it grows.

一只横截面的鹦鹉螺壳在波士顿展示螺旋形的腔，叫做照相机，这是头足动物建造为它自己因为它要成长。

Cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions.

产于印度和太平洋的头足类动物，螺旋状的壳上有浅色珍珠状分隔线。

Patterns in Nature: Shells A cross-section of a nautilus shell in Boston shows the spiral of chambers, called camerae, that this cephalopod builds for itself as it grows.

一只横截面的鹦鹉螺壳在波士顿展示螺旋形的腔，叫做照相机，这是头足动物建造为它自己因为它要成长。

Wendy freedman of the carnegie observatories in pasadena, california, and her colleagues used the space telescope to examine the spiral galaxy m100, in which they discovered cepheid variables.

加州帕萨迪那卡内基天文台的温迪弗里德曼和她的同事们使用空间望远镜来观察螺旋状星系m100，并在其中发现了造父变星。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。