Capture/大全Section E-14

After July, anyone disposing of or servicing refrigerators must capture the chlorofluorocarbons in the refrigerant chemicals.

此处的capture是什么意思呢？总觉得这个词是个用途广泛、很灵活的词，但是到目前为止我还没有领会它的意思，比如说在这里，就难以理解。

字典上的解释如下

1.To take captive, as by force or craft; seize.
2.To gain possession or control of, as in a game or contest:
capture the queen in chess; captured the liberal vote.
3.To attract and hold:
tales of adventure that capture the imagination.
4.To succeed in preserving in lasting form:
capture a likeness in a painting.

不知适用哪种，请NN指教。