堆: Ⅰ动词(堆积) pile up; heap up; stack 短语和例子把木柴堆在后院里 stack the firewood in the back yard; 大车上高高地堆满了水果和蔬菜。 the cart was piled high with fruit and vegetables. 谷仓里堆满了粮食。 the barn was heaped with gra
元件: [电工] element; component; part; cell; organ 短语和例子传输元件 transfer element; 电光元件 electrooptic cell; 电路元件 circuit component; 敏感元件 sensor
