LANs typically employ a combination of Layer 1, Layer 2, and Layer 3 devices. Implementation of these devices depends on factors that are specific to the particular needs of the organization.是什么意思_LANs typically employ a combination of Layer 1, Layer 2, and Layer 3 devices. Implementation of these devices depends on factors that are specific to the particular needs of the organization.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句