belly box

基本解释

He was curled up in your erstwhile empty box, licking his feet and belly, stretched out in all sorts of yoga positions which would hamstring a human tried 'em.
它就在您以前那只空盒子里，蜷着身子，舔舔自己的爪子和肚皮，把身子摆成各种瑜伽姿势——要是哪个人类来尝试那些姿势肯定就残废了。
By an example of a real project, the paper inquires into the changes of support reaction and the influence of various factors on curved box girder of low box, wide belly and long cantilever sheet.
联系工程设计实例，探讨了矮箱、宽腹、大挑悬臂板弯箱梁支座反力的变化及其影响因素之间的关系。