...层组织,幼年茎中有表皮、皮层组织和周皮,老年茎中有次生韧皮部和周皮,很厚,商业上用作塞子和绝缘体 [soft object] 暴露在地面上、易于摧毁的目标 [palmitic acid] 有机化合物,分子式C 15 H 31 COOH,白色结晶体。
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但健康物理学家清楚，这样会使地面上的工人们暴露在掩埋核原料和遮蔽建筑本身散发的辐射之中。
Health physicists knew that workers at ground level would be exposed to radiation from buried materials and to radiation emanating from the shelter.
我可看见地面上的水坑、油污，有毒化合物直接暴露在空气中……甚至不用回头，我就能数出一堆你违法的地方。
I see grease pools on the floor, toxic compounds left open to the air... There are a dozen violations I can see without even turning my head.
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