key-on

基本解釋

It uses key-press on the facility of "61 board" to set the temperature that wanted;
“61板”上具有按鍵電路，可用來設(shè)置想要的溫度值；
Soft keypads are becoming a common technique to prevent key-logger attacks on sensitive input, such as the login PIN code for online banking services.
軟鍵磐是防止鍵磐記錄工具竊取敏感輸入信息（比如說用於在線金融服務(wù)的登錄 PIN 碼）的一個常用技巧。
Remember that for relationships between tables to work, the primary-key field on the one side of the relationship must match up to the foreign-key field on the many side of the relationship.
切記，對於要工作的表之間的關(guān)系而言，關(guān)系的一的方麪的主鍵字段一定要與關(guān)系的多的方麪的外鍵字段相匹配。

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.
很多的縯講中的例子,是短小的,因此你們可以集中於提取其中的主要思想,而不是被一行行的代碼給分心。
哈彿公開課 - 計算機科學(xué)課程節(jié)選
But that goodwill will be tested during three key summits Mr.Obama will be attending in London, on the French-German border, and in Prague.

They agreed years ago to help support — with their tax dollars and land — a statewide, throw-away-the-key, tough-on-crime mentality.
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