叠层

The bodyshell is an integral structure of laminated steel with crashworthy ends meeting the relevant TS1.

为了满TS1关要求，该机车车体为带防撞端叠层钢整体结。

With stromatolite but no desiccation crack, the depositional environment of Middle-Late Cambrian in the area was intertidal zone to subtidal zone with the shallow-water features.

根据其中叠层石和无明显泥裂造，推测为潮间带-局限潮下带沉积环境。