中颅凹底巨大海绵状血管瘤的诊断和治疗。
Diagnosis and Treatment for the Giant Cavernous Hemangiomas in the Middle Fossa.
目的：为了更完全地切除中颅凹底内外沟通性肿瘤。
Objective: To completely remove the neoplasm at both the base of the middle cranial fossa and the infratemporal fossa.
凹底磨鞋可用于磨削井下小件落物以及其它不稳定落物。
The concave bottom mill shoe is used to grind downhole small objects and other unstable fallen objects.
介绍了凹底热钢保温车的性能、结构、保温罩式炉热能计算和选型设计。
Described are the performance, structure, heat energy calculation and model selection design of the cover type holding furnace on depressed center thermal car for hot steel plates.
介绍了D 28型凹底平车的研制过程、主要用途、技术参数、主要结构及试验情况等。
Described are the development process, main usage, technical parameters, main structure and testing of the D28 depressed center flat car.
本文介绍了D_（18A）型凹底平车全封闭式大底架结构刚度、强度的计算和试验结果，对与此有关的若干问题进行了分析。
This paper tells the calculation and test results of the rigidity and strength of all-closed large underframes on depressed centre flat cars D18A. Several problems concerned are analyzed.
根据赫兹应力理论，提出了一种从动件接触面形状为凹圆弧底的新型盘状凸轮机构。
On the base of Hertzian stress theory we developed a new kind of disk CAM mechanism whose follower has concave circle - arc bottom.
本文找出了凹圆弧底直动从动件盘形凸轮与原有凸轮之间的区别与联系，并统一了原有凸轮的设计方法。
This paper presents a new method to design the disk CAM with concave follower, and find the relationship between the new kind of CAM and the formal ones.
本文根据赫兹应力理论，提出一种凹圆弧底从动件的盘形凸轮机构。
In this paper, a new type of disk CAM mechanisms whose follower has concave circle arc bottom is developed.
找出了凹圆弧底直动从动件盘形凸轮与原有凸轮之间的区别与联系，并统一了原有凸轮的设计方法。
This paper presents a new method to design the disk CAM with concave follower, and finds the relationship between the new kind of CAM and the formal ones.
结论：了解筛顶板及筛板的影像解剖及嗅凹的形成对减少前颅底外科手术并发症的发生具有十分重要的意义。
Conclusion: The imaging anatomy of ethmoidal roof, cribrum and understanding of the formation of olfactory fovea is the instructive significance for anterior skull base surgery.
因此，针对所要解决的工程实际问题，决定采用紧靠凹岸布置四道斜底槛的方式作为最终的消减急流冲击波方案。
Therefore, the scheme of four cages that are disposed on the side of concave bank is the last scheme according to the practical engineering problem.
本文给出了底凹弹丸模型风洞实验结果的分析。
The paper makes an analysis of the results of wind Tunnel tests on the ball model with hollow base.
结果：大鼠胃小凹上皮细胞、胃底腺壁细胞呈DHEA免疫反应阳性，阳性物质分布于胞质内，胞核阴性。
Results: the parietal cells in gastric epithelial cells appeared DHEA positive immune reaction. The positive substance was distributed in the cytoplasm and negative in the nuclei.
本实用新型还提供了一种铁路凹 底平车。
The utility model also provides a railway depressed center flat car.
加工方式：蚀刻、阴刻、蚀凹纹底、凹字、凸字蚀刻烤漆、上色、卡典贴色。
Processing: etching, incised, corrosion intaglio bottom concave, convex, word word etching paint, color code, color card stickers.
结论：以上结果提示，胃小凹上皮细胞、胃底腺壁细胞含有DHEA, DHEA对消化道可能具有重要的调节功能。
Conclusions: Parietal cells had DHEA, which might play an important role in the regulation of digestive function.
结论：以上结果提示，胃小凹上皮细胞、胃底腺壁细胞含有DHEA, DHEA对消化道可能具有重要的调节功能。
Conclusions: Parietal cells had DHEA, which might play an important role in the regulation of digestive function.
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