基础: foundation; base; basis频率: frequency; rate基础频带信号技术: base-band signaling technology基础固有频率: natural frequency of a foundation基础自震频率: natural frequency of foundation基础自振频率: natural frequency of foundation固定基础固有频率: rixed-based natural frequency基础振动频率振幅: allowable amplitude of foundation动力机器基础基础自振频率: natural frequency of foundation基础: 1.(泛指事物发展的根本或起点) foundation; base; basis 经济基础 economic base [basis]; 理论基础 theoretical basis; 物质基础 material base; 在和平共处五项原则的基础上, 同各国建立和发展关系 establish and develop our relations with other countries on the basis of the five principles of peaceful coexistence; 打基础 lay a foundation; 为增产打下坚实的基础 lay solid foundations for increased production; 在已有的基础上前进 build on past achievements; 这是两国关系应得到继续发展, 并可能得到继续发展的基础。 this is the basis on which our bilateral relations can and should continue to develop.2.(把建筑物、机器等的荷重传递给地基的结构) base; seat; groundwork; bottom; underpinnings; substruction; foundation; subbasement; 基础 (课)部 basic courses department; fundamentals department; 基础代谢 basic metabolism; 基础工业 basic industries; key industries; 基础教育 elementary education; 基础结构 infrastructure; 基础科学 basic science; 基础课 basic course (of a college curriculum); 基础理论 basic theory; 基础理论研究 fundamental research; 基础设施 parts of the infrastructure; projects for basic facilities; 基础施工 foundation construction; 基础训练 grounding; 基础医学 preclinical medicine; 基础研究 research in basic science; basic research 频率: frequency; rate 超低频率 ultra-low frequency; 超高频率 ultra-high frequency; 低频率 low frequency; 高频率 high frequency; 甚高频率 very high frequency; 中频率 medium frequency; 频率变换 frequency transformation; frequency conversion; frequency transposition; 频率表 frequency list; 频率分布 frequency distribution; 频率共用 frequency sharing; 频率共用电路 frequency-sharing circuit; 频率合成器 frequency synthesizer; 频率互换 [讯] frequency frogging; 频率计 frequency meter; frequency indicator; cymometer; 频率校准 frequency calibration; 频率选择 frequency selection; 频率转换 frequency conversion; 频率转换开关 frequency-changeover switch假频率,伪频率: pseudofrequency累计频率(频率): cumulative frequency伪频率,假频率: pseudo frequency版基础: slab foundation泵基础: pumfoundation打基础: do spade work; prepare oneself for bigger tasks ahead单基础: simple footing墩基础: pier foundation筏基础: raft foundation袱基础: buoyant foundation; floating foundation根,基础: root罐基础: tank base基础,底脚: footing基础,基座: foundation