你们是实习医生，普通工作人员，不重要，处在外科食物链的最底层。
Your interns, grunts, nobodies, bottom of the surgical food chain.
不管底层用什么样的网络技术，IP应用程序的工作不变。
An IP application works the same no matter what the underlying network technology.
在城市，这些农民工打的都是季节工，做的都是最底层的工作；
These migrants would often take seasonal work in the city and accept the lowest-status jobs;
然后他说，底层的工人已经做完了最艰难的工作。
Then, he said, the hardest work was done by the low-level labourers.
该混合系统采用的是底层循环方式，并于常压下工作。
It is a "bottoming cycle" system at the standard atmospheric condition.
该混合系统采用的是底层循环方式，并于常压下工作。
It is a "bottoming cycle" system at the standard atmospheric condition.
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