well-hole wagon

基本解释

But well-hole wagon is applicable for the transport of out-of-gauge and overweight cargos, such as the transformers, generators, rolling mills, reactors, and high-pressure boilers, etc.
而落下孔车适用于运输超限超重型货物，如变压器、发电机、轧机牌坊、反应器、高压锅炉等，研制大吨位的落下孔车是国民经济发展的急需。

落下孔车
According to the particularity of 450t well-hole wagon, create the finite element model, choose the optimization structure plan through the calculation of finite element.
针对450t落下孔车的特殊性，创建了有限元模型，通过有限元计算对结构方案进行了优选。
机械工程
落下孔车
Then, the development trend, and key development technologies of well-hole wagon is presented. It summarizes the key particularities in the development and research of a well-hole wagon.
论文首先介绍了长大货车的国内外研究现状、发展趋势及研制中的关键技术，归纳了落下孔车的研制特殊性。