...（Preservation of Tooth Structure） （2）固位和抗旋转（Retention and Resistence） （3）结构耐用性（Structure Durability） （4）边缘完整性（Marginal Integrity） （5）保护牙周组织（Preservation of Periodontium） 2．嵌体和应用范围和牙体预备要求...
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该测震装置引入无触点振动传感器的结构以提高装置的耐用性，实现了二维振动的检测。
The introduction of the structure of non-contact vibration sensor improved the durability of the instrument, realizing the two-dimensional vibration testing.
然而，房子的坚固性和耐用性暂时还得不到充分的考验，这就需要长期的探索和研究来达到更加坚固、耐用的结构。
However, the strength and durability of the structures hasn't yet been adequately proven. Continued research is needed to achieve even stronger, longer-lasting structures.
板式和夹式双重挂片，限位器采用可调式高强度弹性限位结构，能有效地实现吊轮限位器与吊轮主体间的结合与分离，防撞力大，耐用性更好。
Double patch nail using adjustable of high-strength stopper resilient structure can effectively stop hanging wheel or separation from the stopper. Strong crash resistance and better durability.
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