查询词典 screw

Methods. A 60-year-old man with athetoid cerebral palsy and a history of posterior occipitocerical fusion presented with quadriparesis. Salage surgery for cerical myelopathy and pseudarthrosis was performed with laminectomy and rearthrodesis using the pedicle screw system. An intraspinal cyst was identified as the main cause of the paraparesis.

一位60岁的手足徐动症样大脑麻痹患者，既往曾行后路枕颈融合术，临床表现为四肢轻瘫，影像学检查示脊髓型颈椎病和假关节形成，采用椎板切除和椎弓根钉系统关节成形术后，发现椎管内存在的囊肿是导致四肢轻瘫的主要原因。

Performance of oil atomizer used for single screw compressors is also studied.

对单螺杆压缩机用润滑油雾化器的性能进行了研究； 2。

Introduces a type of screw sump cleaning machine used in coal mine, main discusses about composing structure specialty, work principle, technics flow, electric control system, suit work conditions, main specialty and using this machine for attainability purpose.

介绍了一种用于煤矿井下水仓清理的螺旋水仓清理机，重点论述了螺旋水仓清理机的结构组成特点、作原理、艺流程、气控制系统，适应工作条件，主要特点，以及采用该机可达到的目的。

It can be used as auxiliary surgical instruments on the operation of traditional pedicle screw fixation.

在体外实验中，预警螺锥在胸腰椎(T8~L5)椎弓根螺钉钉道准备过程中，具有良好的报警效应，可作为传统椎弓根系统手术中的辅助器械。

They both agreed in calling him an "old screw"; which means a very stingy avaricious person.

他们两个都说他是一只"螺丝钉"，意思是说他吝音贪婪。

Flexible shaft axis of rotation can be sealed into a screw torque required.

柔性轴能将密封轴的转动转化为螺杆泵所需的扭矩。

This contains a screw axis of symmetry.

这包含对称一个螺旋轴。

The rotor, supported by babbitt metal made bearing, suspends on the bearing pad thanks to oilfilm lubrication by the fuel feeding system. The end clearances can be adjusted automatically to make oilfilm on both ends the same thickness and ensure no leakage. Compared with screw compressors whose output ends would clasp, this compressor has no possibility of the bearing and rotor biting together.

采用航空级的巴氏合金轴承支撑的转子，通过供油系统提供的油膜润滑：转子能悬浮与轴瓦上，并自动调节端面间隙，使两端油膜厚度相并无泄露，该轴承能保证转子轴绝无咬死之可能，而螺杆压缩机因受轴向力的作用排气端间隙，容易有咬死，抱紧现象。

Main structures of plenum pulse bag type collector are as followers: box body and bag compartment, dust store bin, wind inlet and outlet (including screw conveyer and cinder valve), ladder, baluster, air passage system (including offline pneumatic cylinder, electromagnetic pulse valve, compressed air bag), de-dusting controller and so on.

气箱脉冲式袋除尘器的主要结构是，主体由箱体和袋室，灰斗、进出风口（包括螺旋输送机和卸灰阀），爬梯、栏杆、气路系统（包括离线气缸、电磁脉冲阀、压力气包等）、清灰控制器等。

Twin-rotor continuous mixers are a kind of advanced continuous mixers that characterize both Banbury mixers and twin-screw extruders.

双转子连续混炼机是一种性能优良的连续混炼设备，兼具有密炼机和双螺杆挤出机的优点，是一种具有当代国际先进水平的连续混炼机。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。