indispensably的例句（indispensably在句子中的用法）

• Mica is always an indispensably insulative material in electric industry hard to exploit mica. 长期以来,云母一直是电气行业中不可缺少的绝缘材料.
• Intellectual since innovation throws element indispensably, the ultimate goal that is innovation and yield. 知识既是创新不可缺少的投入要素, 又是创新的最终目标和产出.
• Power divider is the indispensably part, this paper designs microstrip power divider, equational and not equational. 功分器是阵列天线馈电网络不可缺少的部分, 本文设计的是微带功分器, 有等分和不等分的.