Beier Depression was divided into rift structure, fault-depressed structure and depressed structure from below.
贝尔凹陷自下而上划分为断陷构造层、断-坳转化构造层和凹陷构造层。
Described are the development process, main usage, technical parameters, main structure and testing of the D28 depressed center flat car.
介绍了D 28型凹底平车的研制过程、主要用途、技术参数、主要结构及试验情况等。
The thin-wall box made by the utility model has tightly integrated wall plates to prevent from being damaged or depressed, and has the advantages of easy formation and reliable structure.
使用本实用新型 制作出的薄壁盒体各壁板结合紧密，不易损坏、塌陷，具有成形容易、结构 牢靠的优点。
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