replacement mechanism

It is put forward to replace the simple harmonic torsional vibration mechanism with the oscillating guard bar mechanism in low frequency vibration tapping machine. The possibility and feasibility of replacement is analyzed.

提出用摆动导杆机构近似替代低频振动攻丝机中的简谐扭振机构，对近似替代的可能性和可行性进行了分析。

Objective: To report occurence of SAM syndrome in 4 patients after aortic valve replacement ( AVR) for severe stenosis and discuss its mechanism.

目的报告4例严重主动脉瓣狭窄行主动脉瓣置换术后出现的二尖瓣前叶前向运动（SAM现象），就其产生机制进行了初步探讨，旨在提高对这种现象的认识。

This paper first analyzes the level of pension benefit in the model of social pooling and personal account, and puts forward the necessity to establish the automatic adjusting mechanism of replacement rate with declining of replacement rate.

文章对辽宁省试点统账模式的养老金给付水平进行了分析，针对养老金替代率的逐年下降，提出了建立养老金替代率调整机制的必要性。

The studies on the dynamics of the activated structure in Southern China indicate that the formation and development of South China block were related to the convergence of heat energy in the lithospheric mantel that led to the thermal erosion and the replacement dynamic mechanism.

华南陆块的活化构造动力学机制研究表明，华南陆块的形成与发展，与岩石圈下地幔热能聚集，导致软流圈上涌的热侵蚀、置换动力机制密切有关。

Protection of hormonal replacement therapy on the heart of brain-dead pigs and its mechanism

激素替代疗法对脑死亡期供心的保护作用及其机制

The algorithm incorporates cache consistency policy with cache replacement policy in which the cache consistency policy is adaptive TTL mechanism, while the cache replacement policy is based on a cost/ value model.

这种算法包括一致性策略和替换策略两部分，一致性策略采用自适应TTL机制，替换策略是基于成本/价值模型的算法。

Design of Novel Robotic Mechanism for Total Knee Replacement Surgery

新型机器人辅助全膝置换手术中机械手的设计

Buffer memory management mechanism of traditional database use data block as the replacement unit, however, any data block contains a large number of other tenants' irrelevant data in shared storage architecture.

传统数据库缓存机制以数据块作为缓存单元，而多租户共享存储架构下，任一数据块均包含了大量其他租户的无关数据，采用数据块作为缓存单元导致大量缓存资源的浪费。

It analyzes working mechanism of vibro-replacement stone pile, combined with specific engineering it introduces design plan 、 construction and test points of vibro-replacement stone pile, it is feasible which has been proved by experiences.

分析了振冲碎石桩的作用机理，结合工程实例，介绍了振冲碎石桩的设计方案、施工及检测要点，经过工程应用，证明了用振冲碎石桩处理地基是行之有效的。

Detachable mechanism allows easy replacement without dismantling the dispenser.

拆卸机制允许简易拆换,而无需拆卸整个喷雾器.