四川邮电职业技术学院教案专用纸 全句可译为:“正是由于SDH设备在这些方面的标准化,才提供了网 络运营者所期望的灵活性,以便能低价高效地应付带宽方面的增长并为后 十年中将出现的新的用户业务做好准备。” 6. The SDh standards are based on the principles of direct synchronous multiplexing which is the key to cost-effective and flexible telecommunication networking are based on以..为基础 key关键,后跟介词to direct synchronous multiplexing直接同步复用 cost- effective性价比高的,低价高效的 Chinese version:SDH标准的基础是直接同步复用。这一原理是低价高效 和灵活组网的关键 7. In essence, it means that individual tributary signals may be multiplexed directly into a higher rate SDh signal without intermediate stages of multiplexing n essence从本质上讲; essence本质,核心 that individual tributary signals may be multiplexed directly into a higher rate SDH signal without intermediate stages of multiplexing.此处为that引导的被动 语态宾语从句。 higher rate更高速率的 Chinese version:从本质上讲,这意味着各支路信号可以被直接复用到更高 速率的SDH信号之中,而用不着中间级的复用阶段 8. SDH Network Elements can then be interconnected directly with obvious cost and equipment savings over the existing network Page 5 of 8 Teaching Plan of Telecommunications English Unit 6四川邮电职业技术学院教案专用纸 Page 5 of 8 Teaching Plan of Telecommunications English Unit 6 全句可译为：“正是由于 SDH 设备在这些方面的标准化，才提供了网 络运营者所期望的灵活性，以便能低价高效地应付带宽方面的增长并为后 十年中将出现的新的用户业务做好准备。” 6. The SDH standards are based on the principles of direct synchronous multiplexing which is the key to cost-effective and flexible telecommunication networking. are based on 以……为基础 key 关键，后跟介词 to direct synchronous multiplexing 直接同步复用 cost-effective 性价比高的，低价高效的 Chinese version：SDH 标准的基础是直接同步复用。这一原理是低价高效 和灵活组网的关键。 7．In essence, it means that individual tributary signals may be multiplexed directly into a higher rate SDH signal without intermediate stages of multiplexing. In essence 从本质上讲；essence 本质，核心 that individual tributary signals may be multiplexed directly into a higher rate SDH signal without intermediate stages of multiplexing. 此处为 that 引导的被动 语态宾语从句。higher rate 更高速率的 Chinese version：从本质上讲，这意味着各支路信号可以被直接复用到更高 速率的 SDH 信号之中，而用不着中间级的复用阶段。 8．SDH Network Elements can then be interconnected directly with obvious cost and equipment savings over the existing network