例句與造句

1. The controlling box is composed of secure shell , flameproof elements ( signal indicator , ammeter , button , switch ) terminals , etc
   控制箱由增安型外殼，隔爆型元件（信號(hào)燈、電流表、按鈕、開(kāi)關(guān)）及接線端子等組成。
2. It's difficult to find signal indicator in a sentence. 用signal indicator造句挺難的