荔枝的形状是椭圆形的，上大下小，像一个小灯笼，又像一个马蜂窝。

Lychee is an oval shape and large small, like a small lantern, like a hornet's nest.

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该反应结晶器由上大下小的圆筒、中心加料筒、轴流泵和循环管组成。

The crystallizer consists of a cylinder which is of big top and small bottom, a focus charging cylinder, an axial flow pump and a circulating tube.

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执行清灰任务的是清灰装置，清除下来的灰尘要从箱体中排走，所以在箱体下面设有上大下小的灰斗，将灰尘集中起来排出。

Execution of the mission is clear out dust ash, dust removal equipment down from the cabinet, so the drained away in a big on the small ash hopper, the dirt concentration up eduction.

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