on key

基本解釋

Telnet with Kerberos can use only Kerberos, which is based on secret-key technology.
用 Kerberos 的 Telnet 僅可以使用 Kerberos，Kerberos 是基于密鑰技術的。
BOINC protects against several types of attacks. For example, digital signatures based on public-key encryption protect against the distribution of viruses.
BOINC能防止各種類型的攻擊。例如，使用基于公共鑰匙加密技術的數(shù)字簽名來防范病毒傳播。
The SSL protocol is based on public-key cryptography where encryption keys come in pairs that are mathematically related, but one cannot be deduced from knowing the other.
SSL 協(xié)議基于公鑰密碼，加密密鑰成對地出現(xiàn)在公鑰密碼中，它們是在數(shù)學上是相關的，但無法由一個推知另一個。

The general referred to that goal at a low-key ceremony during which he formally took on his new duties Monday in Kabul.
It's deliberate that a lot of the examples in lecture are fairly short and bite-size so that you can actually focus on pulling out the key ideas without getting distracted by line and lines of code.
很多的演講中的例子,是短小的,因此你們可以集中于提取其中的主要思想,而不是被一行行的代碼給分心。
哈佛公開課 - 計算機科學課程節(jié)選
So if you've ever seen or used an old school typewriter, you might recall that when you're typing something out on an old mechanical typewriter, - when you like hit the char-- when you hit the enter key to move the head back to the left hand side to the next line or you would pull down some lever, it was really a two part process.
如果你們有誰曾經(jīng)看過或用過老式打字機，可能還記得，當你在,這種老式打字機上打字的時候，當你-,敲入回車鍵，跳轉到,下一行的最左邊，或者,拉一下桿，這個需要兩步走。
哈佛公開課 - 計算機科學課程節(jié)選

Most importantly though, one should find pragmatic solutions to solve the recurrent norms dispute the EU and the US have frequently had (i.e. on low-key issues such as beef hormones).
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