当货物到达某一目的地的时候，某些人会打开包装材料，并将它放到一个琼脂板上，然后让细菌在一个提前安排好的环境中生长。
When the product arrives at its destination, someone would take the packaging material, print it on an agar plate [a petri dish] and then grow the bacteria under a pre-arranged growth condition.
这些包装器可能非常普通，或者它们通过完成一些实际的设置工作来处理特殊的情况，或者在将控制权转移给内核之前以特定的方式将事情安排就绪。
Those wrappers may be very trivial, or they may do some real setup work to handle special cases or set things up in a particular way before transferring control to the kernel.
它们在组蛋白上的出现能够提示更高阶的染色质结构，DNA包装在该结构中，且能够精心安排酶复合物的有秩序的招募来调控DNA。
Their presence on histones can dictate the higher-order chromatin structure in which DNA is packaged and can orchestrate the ordered recruitment of enzyme complexes to manipulate DNA.
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