on off element 开关元件
To do so, it will pick off the first element of the list — the head — to do the processing on that element, and recursively pass the rest of the list to itself again.
为此,它将选取列表的第一个元素 — 列表头部 — 来对该元素执行处理,然后再递归式地将列表的其余部分传递给自身。
A structural element can be a subsystem, a process, a library, a database, a computational node, a legacy system, an off-the-shelf product, and so on.
一个结构组件可能是一个子系统,进程,库,数据库,计算结点,馈赠系统,按需产品等等。
Turn the burner off once the milk is boiling, but leave the saucepan on the element or gas grate.
当牛奶煮沸时把火关掉,但不需要把平底锅移开。
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