查询词典 arch dam

arch key stone：拱顶石

arch key 拱顶石 | arch key stone 拱顶石 | arch length 拱长

arch camber：拱翘起

arch bridge 拱桥 | arch camber 拱翘起 | arch center 拱圈中心

arch camber：起拱

arch buttress || 拱壁 | arch camber || 起拱 | arch centre || 拱架

arch camber：拱矢

arch buttress 拱形支墩 | arch camber 拱矢 | arch camber 起拱

arch camber：拱势;拱矢;起拱

arch building 拱形建筑 | arch camber 拱势;拱矢;起拱 | arch cantilever bridge 拱式悬臂桥

arch hinged at the abutments：铰连在支座上的拱形桁架

arch higned at ends 双铰拱 | arch hinged at the abutments 铰连在支座上的拱形桁架 | arch impost 拱座

arch floor：拱形底板,拱形楼板

arch face ==> 拱面 | arch floor ==> 拱形底板,拱形楼板 | arch form ==> 弓形

X-shaped" arch bridge：提篮式拱桥

中承式肋拱:The middle supporting arch bridge | 提篮式拱桥:"X-shaped" arch bridge | :刚架拱桥:: rigid-framed arch bridge

Large-span half through arch bridge：大跨中承式拱桥

抛物线平行双肋拱:parabola parallel arch bridge | 大跨中承式拱桥:Large-span half through arch bridge | 旧双曲拱桥:the existing double-curved arch bridge

arch; three-hinged：三绞拱

arch; fixed 固端拱 | arch; three-hinged 三绞拱 | arch; two-hinged 二绞拱

liquid helium：液态氦

除了路径积分及应用在量子电动力学的研究成果之外,费曼其它重要的研究贡献还有1953年发表有关液态氦(liquid helium)超流体理论,以及1969年提出的成子(parton)模型.

fly wheel nut wrench：装拆飞轮螺母扳手

fly wheel magneto 飞轮式永磁发动机 | fly wheel nut wrench 装拆飞轮螺母扳手 | fly wheel pump 飞轮泵