油水分离器的功能是高压空气进入（）之前滤去油水等杂物。
参考答案：总风缸
直接标记法最常用于肽类、蛋白质和酶的碘化标记。()
The art show was _______ being a failure; it was a great success.
A．far from
B．along with
C．next to
D．regardless of
