By dealing with constraint condition and cell parameter, results of elements' stress and nodal displacement of the keel were obtained under gravity load condition.
对约束条件以及结构单元参数进行了分析，得到了龙骨结构在重力载荷作用下的应力和变形。
2
Nodal NK-cell lymphoma are quite rare.
在淋巴结中，NK细胞淋巴瘤很少。
3
In the absence of a history of malignancy, the differential diagnosis of a spindle cell tumor must include both a primary nodal proliferation and a metastatic process.