螺旋

The study of screw seal with pulp was carried out in this paper and it was found that the screw parameters are different between screw seal with pulp and with oil.

摘 要：初步研究了以纸浆为密封介质的螺旋密封，结果表明，它与以油为介质的普通螺旋密封在螺旋参数选择上有所不同；其最高密封压力可达112 kPa，并且无需配置停机密封。

In the research of visual simulation software development, in order to build the software system model and flow analysis algorithm based on Cross-WLF viscosity model, and realize functions such as pre-processor, solver, parameter regress, data management, graph operations, some advanced software methods as OOSE (Object Oriented Software Engineering) and UML were applied to set up user model, static model and dynamic model of MIM simulation software. These models describe system function, event flow, structure and relation of classes, object interaction, structure of database and I/O file format.

在MIM喂料注射成形性能研究方面，针对毛细管流变仪测试法衡量流动性能的不足，提出使用螺旋线模具测试喂料熔体的注射成形性能，创造性地设计了一套可快换浇口，模腔封闭的螺旋测试模，并在螺旋测试模上采用正交实验设计，得出了高密度重合金喂料流动长度L_m的回归公式，揭示了L_m随Q_m、P_m、△T_m和凡的变化规律，并得出工艺参数对成形性能影响的强度顺序为Qm最大，尸m与△几其次，因而改善喂料流动性能应优先控制注射速率Qm。

Through the analysis of the formation principle of helical curves , the uniform equation of taper surface helical curves is established and the optimization analysis is made of the screw wing cutting edge of the taper spiral auger s tip .

通过分析螺旋线的形成原理，建立了锥形面螺旋线的统一方程，并对圆锥螺旋钻尖的翼片刀刃部分进行了优化分析。

Does spiral movement synchronously,a nonlinear model was established by neural networks to describe the relationship between the helical groove and the milling cutter'sprofile,and according to the helical groove axial cross section to simulate the milling cutter's profile.

加工螺旋槽时，针对铣刀刃形的设计，应用包络面原理，采用神经网络方法建立了工件螺旋槽形与铣刀刃形之间的非线性关系模型，并通过工件螺旋槽端面截形模拟仿真出铣刀回转面刃形。

The structure,working principle and application of windback seal of D-type oil pump are introduced.

介绍了D型输油泵螺旋密封的结构、原理及其应用，改造后的螺旋密封与原输油泵的填料密封相比，螺旋密封的结构合理、安装方便。

Main characters of the feede are described,including diameter of screw axes,screw-pitch,axes rotate speed and power selection etc.Then vane structure models are introduced.

对螺旋给料机设计过程中的几个主要参数进行了阐述，包括螺旋轴的直径、螺距、轴的转速以及功率等，最后还对螺旋给料机的类型进行了阐述。

The GL spiral concentrator and the spiral chute are currently the two spiral concentrators widely used in China.

GL 螺旋选矿机和螺旋溜槽是国内目前广泛使用的两种螺旋选矿机。

"The association between AF and H. pylori was very strong in patients with persistent AF," the authors write."In addition, we report high concentrations of CRP, which confirm the presence of systemic inflammation in patients with AF, which leads us to hypothesise that H pylori infection may be the substrate of this systemic inflammation manifesting in AF.??More data will be necessary from controlled studies to further identify how H. pylori can influence the pathogenesis of AF."

持续性心室纤维颤动患者的心室纤维颤动与幽门螺旋杆菌之间的关系非常强烈；Montenero表示，我们另外也提报了高浓度的C反应蛋白，这对心室纤维颤动患者的全身发炎现象作了证实；这个现象使得我们作出一项假设，亦即，心室纤维颤动患者之所以会全身发炎，是因为幽门螺旋杆菌的关系；至於幽门螺旋杆菌如何对心室纤维颤动发病原因作影响，我们需要更多的资料才能证实。

Methods ①The spiral organ of corti of 10 mice (20 ears) were taken, and divided into 2 groups randomly (n=10), cultured in 0.1 mol·L-1 gentamicin and the metabolite of 0.1 mol·L-1 gentamicin for 48h, then the number of hair cells remain was recorded;②The spiral organ of corti of 10 mice were taken (20 ears), and divided into 2 groups randomly (n=10), 3% CaCl2 and 0.1 mol·L-1 GM were mixed in the culture medium and the number of hair cells remain in the two medium mentioned above were recorded;③The spiral organ of corti of 10 mice were taken (20 ears), divided into 2 groups randomly (n=10), 3% MgSO4 to 0.1 mol·L-1 GM were mixed in the culture medium, the number of hair cells remain in the two medium mentioned above were recorded.

①取10只小鼠的耳蜗螺旋器（20个），随机分为2组（n=10），分别在含0.1 mol·L-1 GM与0.1 mol·L-1GM代谢产物的培养液中培养48 h后，记数残留的耳蜗毛细胞数；②取10只小鼠的耳蜗螺旋器（20个），随机分为2组（n=10），分别在含0.1 mol·L-1 GM与0.1 mol·L-1GM+3% CaCl2的培养液中培养48 h后，记数残留的耳蜗毛细胞数；③取10只小鼠的耳蜗螺旋器（20个），随机分为2组（n=10），分别在含0.1 mol·L-1 GM与0.1 mol·L-1GM+3% MgSO4的培养液中培养48 h后，记数残留的耳蜗毛细胞数。

According to the helix theory , In almost all structures of organic compounds exist helices, helix structure is the basic reason of the molecular optical rotation.

螺旋理论认为，几乎所有的有机化合物结构中都存在螺旋，螺旋结构是导致旋光性的根本原因。

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