The key section here is obviously the mime-mapping element.

显然，这里的关键部分是 mime-mapping 元素。

youdao

Communication network is the key section in substation automation system.

认为通信网络是变电所自动化系统的关键。

youdao

The strength control load case and the key section of beam are determined.

归纳了横梁的强度控制工况和截面。

youdao

But the key section is probably the one dealing with the Special Educational Needs system.

BBC: Week ahead

That is not how things are going so far: on May 26th-27th, the convention published the first full draft of the constitution but admitted that its members are still greatly divided over the key section on reforming the EU's institutions.

ECONOMIST: Discord over Giscard's Euro vision

Right now he is the only fisherman permitted to harvest shrimp in a key environmentally sensitive section of Monterey Bay.

NPR: California Cuts Coastal Fishing to Restore Ecosystem