Zirconia ceramics used in all - ceramic restoration of prosthodontics has shown favorable biocompatibility , chemical stability , flexural strength and color property 摘要氧化锆陶瓷作为口腔全瓷修复材料，在生物相容性、化学稳定性、抗弯曲强度和色泽等方面具有优势。
The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry , decrease and delay the hydrating max - temperature , in which steel slag is more effective ; expansive agents compensate concrete shrinkage , enhance the concrete dense degree , strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property , increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels 实验结果显示：钢渣掺合料能显著减缓水泥浆体水化速率，降低砂浆的水化温升并延迟最高温升时间；补偿混凝土收缩，提高混凝土密实度，加强纤维与水泥石的界面粘结，增强混凝土力学性能，但不能明显改善混凝土韧性。混杂纤维通过纤维的不同尺度与不同性质在相应的结构层次上产生阻裂效应，增韧钢渣防渗抗裂混凝土；增加混凝土的破坏极限能，极大提高混凝土抗弯曲能力和韧性指数，改善混凝土脆性。
According to each ingredients ( water retaining admixture , polymer , inorganic mineral ) " effect to mortar ' s behaviors ( water relentivity , strength , contractility ) in exclusive mortar " s composite addition , the text defines each ingredient ' s quantity scope , then define the mix through cross experiment . we compared the aac exclusive mortar ' s behaviors such as water relentivity , compressive strength , binding strength , shrinkage , flexural strength and others to ordinary mortar ' s ones , it turn out to be that there is much improve in former ' s behaviors such as water relentivity , compressive strength , binding strength , shrinkage , flexural strength etc , it also shows that the aac exclusive mortar can improve the crack in aac brick walling to a certain degree 并根据专用砂浆中复合外加剂的各个组分(保水剂、聚合物、无机矿物等)对砂浆主要性能(保水性、强度、收缩性、抗弯性等)的影响来确定每个组分的掺量范围，再通过正交实验确定最佳配合比，然后就普通砂浆与专用砂浆的保水性、抗压强度和粘结强度、收缩值、抗弯曲性能以及其它性能进行了对比，对比结果表明专用砂浆的保水性、抗压强度和粘结强度、收缩值、抗弯曲性能以及其它性能较普通砂浆都有了很大的提高，说明加气混凝土砌块专用砂浆在一定程度上可以改善加气混凝土砌块墙体的开裂情况。
Made with introduced advanced technology , using the best abrasive , new modified resin and special fibre cloth , these wheels are of high shocking and bending strength , suitable for various contour grinding , especially for curvature grinding and widely used for glass , stainless steel , masonry and castiron processing 引进国外先进技术，用最佳的磨料，新型改性树脂和专用网布制作而成，具有较高的抗冲击和抗弯曲性能，柔韧性好，适用各种型而磨削，特别适用曲面磨削；广泛用于不锈钢、玻璃、石材、铸铁等加工行业。
Then , according to the established structure , the parameters of the optical switch were modeled and optimized . the thickness , roughness , verticalness of the mirror was analyzed and designed . finally , the rectangular magnetic material was selected for the electromagnet thirdly , the parameters were optimized by ansys software and the performance of the optical switch was analyzed 首先根据电磁铁的非线性特性和梁的抗弯曲力的线性特性，设计出磁力驱动悬臂梁式光开关结构，然后根据提出的结构，从理论上对悬臂梁的参数进行模拟分析选出合适的悬臂梁参数，紧接着分析平面镜的厚度、表面粗糙度、垂直度对光开关性能的影响；最后对磁路系统，明确选择具有矩形磁滞回线的材料，设计出电磁铁的结构。
