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- The telephone system has broken down. 电话系统失灵了。
- sound powered telephone 声力电话,声动力电话
- sound powered telephone set 无电池电话,声力电话机
- I'm trying to get the hang of the new telephone system. 我正在练习掌握新型的电话机的用法。
- We had a new telephone system installed last week. 上周我们安装了一套新的电话系统。
- We have a new telephone system install last week. 上周我们安装了一套新的电话系统。
- Setting up telephone system in the EDP range. 其中文意义为:在电子数据处理范围中设置电话系统。
- Our hotel telephone system has IDD service. 饭店的电话系统有国际长途直拨功能。
- The German telephone system is highly efficient. 德国的电话系统效率很高。
- We have to pay in advance to have the new telephone system install. 装新电话系统我们必须预先付款。
- Need to relocate the Telephone System to another location? 需将整套电话系统迁往新地址?
- The telephone system has broken down for several days. 电话系统已经瘫痪好几天了。
- In America the telephone system is run by private corporations. 美国的电话网络由私人电话公司经营。
- Powered mechanical equipments (PME) of sound power levels (SWL) not exceeding those listed in Annex A shall be used. 建造期间使用的低噪音施工设备,其声功率级不能超出附件A所列出的。
- To verify the accuracy and reliability of the system, contrast tests on reference sound power source and small motor are performed respectively in a semi-anechoic chamber and a common room. 为了验证噪声检测系统的精度和可靠性,在半消声室和普通房间内,分别对标准声功率源和小型电机作声功率对比测量试验。
- It started with hacking telephone systems. 真正的黑客行为是从入侵电话系统开始的。
- Methods for Measurement Calculation of Sound Emitted by Machinery and Equipment at Work Stations and other Specified Positions from Sound Power Levels. 声源级的工作台或其它特定的场所由机器和设备发出的声音的计算方法。
- The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure. 摘要利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。
- PSTN (local telephone system)/VSAT circuits for voice and e-mail capability. PSTN(当地电话系统)/ 语音和电子邮件的小型卫星地面站(VSAT)电路功能。
- An innovative implementation of the skin concept for the reduction of the radiated sound power from a vibrating structure is proposed. 摘要 本文的目的为研究在有限平板之双曲线热传导的正、逆算问题受表面辐射的影响。