下模

The mechanical model and mathematical models of dead weight and lever support system on bandsaw were set up.

为揭示杠杆压砣张紧系统的内在本质问题。建立了空载条件下的张紧系统的力学模犁和数学模型。

The testing results showed that the higher Shore A hardness, tensile strength, elongation at break, modulus at 100% elongation of MMg/NBR vulcanization were obtained when compared to those of C.B./NBR system; and the presser-resistant property of packer-rubber can be improved for 5Mpa with new structure.

结果显示：与炭黑/NBR体系相比，在过氧化物硫化体系下，甲基丙稀酸镁可以有效补强丁腈橡胶，MMg/NBR硫化胶的邵A硬度，拉伸强度，扯断伸长率和100%定伸强度均较高；新设计的胶筒结构简单合理，易卸模，成品率高，并通过模拟试验发现，新的结构形状可以有效改善胶筒的抗破坏性能，耐压差性能平均提高5MPa。

Dental implants can provide stabilization of dentures for the atrophic alveolar ridge crest,but in many situations it is impossible to provide implants.

虽然口腔种植体能够为义齿提供固位，但很多情况下患者是无法接受种植治疗的，印模技术将起到重要作用。

B Under linear condition, the dynamic behavior of viscoelastic materials, i. e. their complex modulus, Can be identified simultaneously at diffirent frequencies by the method.

对比以往研究者提出的方法，新方法有两大优点：第一，新方法可辨识粘弹材料非线性动态特性；第二，在线性情况下，用新方法可一次得到多频率点处的复模量值。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。