2) Telephone conversations are carried by wires.
电线传输电话。
4) voice-over-DSL(VoDSL)
数字用户线上传输话音，DSL电话
5) electric transmission line
电传输线
1.
Based on the theory of electric transmission line and the electroacoustic analogy method, the T_type equivalent network of the acoustic waveguide which is uniform and finitely long is derived in which plane wave propagate and the formula of its impedance transfer is obtained as well by means of the equivalent circuit analysis.
依据电传输线理论和声电类比原理,讨论并推导出了管中为平面波时有限长均匀截面声波导管的等效T型网络,并通过等效电路分析法推导出了其阻抗转移公式,为声波导管阻抗分析提供了一种新方法,使声波导管的设计更简便。
6) Transtelephonic monitoring
电话传输心电图
1.
Methods Transtelephonic monitoring(TTM) was performed for 24～48 hours in 200 aged silent myocardial ischemia(SMI) patients who was asymptomaticin in one week,at the same time,dynamic electrocardiographic(DCG) monitoring was performed for24-hour in the same patients to observe SMI and arrhythmia incidence.
目的探讨电话传输心电图(TTM)对老年冠心病患者无症状性心肌缺血(SMI)的应用价值。
补充资料：传播常数(见传输线)
传播常数(见传输线)
propagation constant
ChUon匕oChongsh日传播常数(propagation constant)线。见传输
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条