The compressed tracheal cartilage disappeared in 2 cases, became thin and soft in other 34 cases.
局部受压处气管软骨环消失2例，气管软骨环变细、变薄、变软34例。
The oil shale of Wulidui Formation in the Wucheng Basin, Tongbai occurs as brown-black, thin and soft slices with an average oil yield up to 6.
桐柏吴城盆地五里堆组油页岩为棕黑色，质细而软，呈薄片状产出，平均含油率为6。
The result is an unusual bunch of sea lilies, brittle stars, giant ribbon worms and molluscs that are armoured only with thin, soft shells.
这种气候造就了不同寻常的海百合群落、海蛇尾、巨大的海带和只有薄壳的软体动物。
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