Activation is making an electrical system or a chemical process start working — the start itself, or the process of starting.

Activation isActivation是 making an electrical system or a chemical process start working讓電力系統或化學反應開始運作——the start itself, or the process of starting也就是那個開始的動作本身，或開始的過程。

With machines and electricity, something was waiting, and now current can flow: the activation of an alarm, a sensor, a card.

With machines and electricity對機器和電力來說，something was waiting原本有東西在等待，and now current can flow現在電流可以流動了：the activation of an alarm, a sensor, a card像警報器、感應器、卡片的activation（啟動）。

In chemistry, and in the body, activation means a reaction or a substance is kicked from “ready” into “doing its job.” The word is a noun; the doing-word is activate.

In chemistry, and in the body在化學和身體裡，activation meansactivation指的是 a reaction or a substance is kicked from “ready” into “doing its job.”一個反應或物質從「準備好」被推進到「開始執行任務」。The word is a noun這個字是名詞；the doing-word is activate動詞是activate。

Though actually, people stretch the same idea to phones and accounts (you activate a SIM, then activation is complete) and to software: something was there but not live, and now it is live.

Though actually不過其實，people stretch the same idea to phones and accounts大家也把這個概念延伸到手機和帳號上（you activate a SIM, then activation is complete你activate一張SIM卡，然後activation就完成了）and to software還有軟體：something was there but not live原本東西存在但還沒上線，and now it is live現在上線了。

Labs, manuals, and IT all like it; it feels neutral to formal.

Labs, manuals, and IT all like it實驗室、說明書、IT部門都愛用這個字；it feels neutral to formal給人的感覺中性偏正式。