Objective To determine if calcium phosphate cement can enhance vertebral pedicle screw fixation in the osteoporotic spine through periodical anti-bending test.
目的本实验旨在从周期抗屈试验方面证实磷酸钙骨水泥对椎弓根螺钉固定的强化作用。
Before completing linkage screw in the machining, finished products are needed to do the pre-tensile test.
连杆螺钉在加工完成后成品交验前，要求进行预拉伸试验。
To meet the needs of tensile test for small diameter bolt and screw, this article gives a design of tensile testing device.
针对小直径螺栓和螺钉的拉伸试验要求，设计了一种拉伸试验装置。
Finally, a experimental system of Organic Rankine Cycle power generation with single screw expander was designed and built on the basis of the performance test of the expander.
最后，本文还在对膨胀机基本性能测试的基础上，设计并搭建了单螺杆膨胀机的有机朗肯循环发电系统。
The surface drive unit of screw pumps features in complex stress and many vibration sources, so the traditional vibration test method cannot determine the diagnosis accurately.
螺杆泵地面驱动装置受力复杂，振源众多，常规的振动测试对于故障的定位与诊断精确度不高。
Both test results and application show that the large single screw pump has reached the design requirements. It has the features of reasonable parameters, advanced structure and reliable performance.
试验及使用结果表明：大型单螺杆泵性能达到设计要求，具有参数合理、结构先进、工作可靠的特点。
It is verified through practice that this test-bed could effectively test the anti-loosening property of screw thread connections.
实践证明，该试验台能有效测试螺纹联接的防松性能。
The experimental results of vibration test show that the effect and cost of Loctite screw sealant are more favourable than those of a mechanical locking.
振动试验结果表明，与机械锁固相比，乐泰紧固法效果较好，成本较低。
The paper brings out the reforming scheme of double screw pump substituting for centrifugal pump. The on-spot test and application has achieved good energy conservation effect.
提出了用双螺杆泵代替离心泵的技术改造方案，经现场试验及应用，取得了良好的节能效果。
Mechanical structure is installed in a precision-guided screw device test platform, stepping motor control through the mirror group displacement to achieve CCD acquisition.
机械结构是一个安装在精密螺纹导引装置上的测试平台，通过步进电机控制反射镜组位移实现CCD采集。
Objective To test the biomechanical stiffness of cross-linkage in monosegment instrument with short pedicle screw.
目的测试使用横连在单节段短椎弓根钉内固定中的生物力学稳定性。
The bimetallic thermometer should note the products model. test range, fix screw, protect pipe length, shield diameter, accuracy and other technique parameter.
双金属温度计订货时须分别注明产品的型号、测量范围、安装螺纹、保护管长度外壳直径、准确度等级等技术参数。
The bimetallic thermometer should note the products model. test range, fix screw, protect pipe length, shield diameter, accuracy and other technique parameter.
双金属温度计订货时须分别注明产品的型号、测量范围、安装螺纹、保护管长度外壳直径、准确度等级等技术参数。
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