DTI is the old short name for Britain’s Department of Trade and Industry — the government office that used to look after business, trade, and factories. It is former: the department has been split, renamed, and replaced more than once, so there is no “DTI” door in London today.

DTI is the old short name for Britain's Department of Trade and IndustryDTI是英國「貿易工業部」（Department of Trade and Industry）的舊簡稱，the government office that used to look after business, trade, and factories那是以前負責管企業、貿易，和工廠的政府部門。It is former它已經走入歷史，the department has been split, renamed, and replaced more than once這個部門被拆分、改名、取代過不只一次，so there is no "DTI" door in London today所以現在倫敦已經沒有掛「DTI」牌子的門了。

You still meet the letters in older British news, company histories, and official papers, especially from the 1980s to the 2000s. It is British politics, not a science term, and not the name of a Taiwan government office.

You still meet the letters in older British news, company histories, and official papers你還是會在較舊的英國新聞、公司歷史，和官方文件裡看到這幾個字母，especially from the 1980s to the 2000s尤其是1980到2000年代之間的資料。It is British politics這是英國政治的用詞，not a science term不是科學術語，and not the name of a Taiwan government office也不是台灣政府機關的名稱。

Formal, and a little dusty. Though actually, many modern abbreviations start with D for “digital”; this D is just Department.

Formal正式，and a little dusty而且有點過時陳舊。Though actually不過其實，many modern abbreviations start with D for "digital"很多現代的縮寫用D開頭是指「digital（數位）」，this D is just Department但這個D只是Department（部）而已。