material nature是什么意思

material nature网 络物质自然；物质化；物性自然；物质本性双语例句1。The nature and availability of material evidence was not to be discussed。\x09实质性证据的性质和可用性毋庸讨论。2。Lock brands depend on the dielectric material nature。\x09闸板材质牌号取决于介质性质。