... 锌版,锌凸版zinc block 锌版裁切机zinc cutter 锌版防蚀处理Cronaking ...
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zinc cutter
锌刀
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It is believed that leaf-cutter ants' mandibles also contain zinc-enriched biomaterials, which strengthen them.
BBC: Earth News - Leaf-cutter ants retire when their teeth wear out
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