n.非导体；电介体；绝缘体

Glass is a common nonconductor of electricity.
玻璃是一种常见的电绝缘体。
The handle of the pan is made of wood, which is a nonconductor of heat.
锅柄由木头制成，木头是热的不良导体。
Rubber is an excellent nonconductor and is used for insulating electrical wires.
橡胶是优良的绝缘体，常用于电线的绝缘层。
In electronics, air serves as a nonconductor between circuit components.
在电子学中，空气作为电路元件之间的绝缘体。
The human body is not a perfect nonconductor; it can conduct electricity under certain conditions.
人体并不是完美的绝缘体，在特定条件下可以导电。
Diamond, despite being a form of carbon, is an extremely effective nonconductor of electricity.
尽管钻石是碳的一种形式，但它是一种极有效的电绝缘体。
The insulating material around the cable prevents it from being a nonconductor.
电缆周围的绝缘材料防止其成为导体。
Silicon dioxide, commonly known as sand, is a nonconductor in its natural state but can be turned into a semiconductor.
二氧化硅（即沙子）在自然状态下是绝缘体，但可以被转变为半导体。
Plastic is widely used in electrical appliances due to its nonconducting properties.
塑料因其不导电的特性被广泛应用于电器中。
The scientist coated the surface with a thin layer of gold to make it a nonconductor for specific wavelengths of light.
科学家在表面涂上一层薄金，使其对特定波长的光成为不导体。