这两样产品均强调了一个婴儿车折叠功能，并且无须工具，以及提供三种尺寸车轮的快速替换。
Both strollers were highlighted by a folding feature which required no tools, as well as quick release wheels that were offered in three sizes.
重新组装的小车，应检查小车轮的尺寸是符合技术要求。
Reassemble the car, should check the size of the small wheels are in line with the technical requirements.
采用平面应力弹性理论，对吊车车轮与轨道的接触区尺寸进行理论分析。
The contact zone width of crane wheel with track is analyzed by plane stress elastic theory.
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