The existing valuable components that FFWD wanted to restore form the upper shell of the space: walls and roof.

FFWD想去恢复现有的有价值的部分，形成空间的上筒体：墙壁和屋顶。

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The reason of thinning out of the upper shell and spherical head for coke tower was analyzed briefly. The temporary repair measure was proposed.

对焦炭塔上部壳体和球形封头的减薄原因进行了简要分析，提出了临时修复措施。

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The hinging device can conveniently distribute wires inside through the grooves of the upper arm and the lower arm and the notches of the upper shell and the lower shell.

本发明铰接装置通过设置在上、下臂的凹槽及上、下壳体的开槽从而方便在其内部走线。

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The plastic upper shell has been textured, making it look a little heftier and studier than comparable units.

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Schneider scrunches up his nose, a large oyster that has another smaller and deformed relative attached to its curved upper shell has caught his attention.

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Equipped with a flat underside and cupped upper shell that resembles a skewed dome, they are etched with faint concentric lines that recall growth spurts.

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