结论：带环形板层巩膜瓣全板层角膜移植术是严重眼部化学伤后重建眼前节的有效方法，其免疫学机制复杂。
Conclusion: Total lamellar cornea with circular lamellar sclera transplantation is an important method for treating serious chemical burn of eye, its immunological mechanisms is complexity.
一种用于等速万向节的润滑脂盖的连接系统的一个实施例包括在所述等速万向节的大体上呈环形的部分中形成的沟槽部分。
An embodiment of a connection system for a grease cover of a constant velocity joint includes a groove portion formed in a generally annular portion of the constant velocity joint.
由于其结构和所受载荷比较复杂，因此本文采用了精度较高的8节点四边形等参数环形单元对模型进行了有效求解。
In this paper, the 8-node quadrangle equal-parameter ring cell whose precision is relatively high, is used to solve the problem effectively, since the its structure and load are comparatively complex.
环形浇口。这种浇口的功能是和前一节讨论的浇口相同的，且有相同的注释。
The function of this gate is identical to that discussed in the previous section and the same comments apply.
该球形万向节具有一个基本环形的万向节壳体(3)，在其基本圆柱形的内室里面可以设置一个球壳(1)。
The ball joint has a substantially annular joint housing (3), in the cylindrical interior of which a ball socket (1) can be arranged.
之后，结合环形供电网络的特点，给出了二节点和三节点以上环形电力系统短路电流的实用计算方法。
And then, according to the features of the looped power supply network, the paper educes the applied calculating methods of two-node power system and more-than-three-node power system respectively.
之后，结合环形供电网络的特点，给出了二节点和三节点以上环形电力系统短路电流的实用计算方法。
And then, according to the features of the looped power supply network, the paper educes the applied calculating methods of two-node power system and more-than-three-node power system respectively.
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