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sound powered telephone set 无电池电话,声力电话机
sound powered telephone 声力电话,声动力电话
Incorporates a Full Featured Telephone Set. 并入电话机的全部功能。
Please clean the telephone set including the dial. 请将电话机清理一下,包括拨号盘。
Compact Desk-Top Package Fits Under A Standard Telephone Set. 简洁的适合放置于桌面上的包装适合于标准电话机。
This product is of secure type consisting of telephone set and coupler,. 本产品为本质安全型,由电话机和耦合器两部分组成。
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。
User at the telephone set A desires to place a call through the HF system to distant telephone set D. 位于电话机A位置的用户要通过hf系统拨打长途电话至电话机D。
You need add a called line indicator or buy a display telephone set after your application. 申请后需要加装来电显示器或购一部来电显示话机。
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。
Based on the idea of FPGA embedded system the design and realization of the Ethernet telephone set is researched. 基于FPGA嵌入式系统的设计思路,对以太网电话机的设计与实现进行了研究。
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。
The fees are deducted from the account which the subscribed telephone set corresponds to.The POS service subscriber must possess an exclusive account. 费用在相应的签订的电话机账号扣除。POS服务的签署人只可以拥有唯一的账户,去使用POS服务。
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。
The figures can be used to easily calculate the sound power level of the sound source inside the duct through measuring the SPL at a single point outside of the duct. 利用这些图和简单公式,通过测量管外一点的声压级就可确定管内声源声功率。
The experimental tests involved the total sound power level, the sound pressure spectra and the sound source directivity of the AFF are firstly presented. 本文首先进行了轴流风扇总声功率、声压频谱及声源指向性等声学特性的实验测试。
It is shown that the numerical results of the total sound power level and the sound directivity of the original AFF agree well with those results by testing. 结果表明，采用数值计算的方法得到原型轴流风扇的总声功率级和声源指向性与实验测试结果吻合较好。
And when you call general enquiry lines such as 100, 1605 and 1711, you will be greeted by automated answering machines which give you step-by-step instructions on the numbers to enter on your telephone set, to obtain the information you need. 又如，打100、1605、1711等电话号码，电话另一端会自动告诉你服务项目的内容，并指示你按1、2、3等等。
After two-grade demarcate, the A/B/C sound pressure level, the gross sound pressure level and the sound power level are produced with the application of A, B, C level fuzzy net. 通过二级标定，引入A、B、C三档模糊计权网络，生成A、B、C三档声级及总声级，求取声功率级，进而依据三段评判对噪声进行进一步的评判。
And when you call general enquiry lines such as 100,1605 and 1711,you will be greeted by automated answering machines which give you step-by-step instructions on the numbers to enter on your telephone set,to obtain the information you need. 又如，打100、1605、1711等电话号码，电话另一端会自动告诉你服务项目的内容，并指示你按1、2、3等等。