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In a telephone system, a term applied to any non data transmission that makes use of voice grade lines. 在电话系统中的一种术语。适用于利用音频段线路的任何非数据传输业务。ZK)
in a telephone system,a term applied to any non data transmission that makes use of voice grade lines 在电话系统中的一种术语。适用于利用音频段线路的任何非数据传输业务
In communications, the range of signal frequencies that can be satisfactorily transmitted on a given channel, e. g. the passband on voice grade channels is 300 3000Hz. 在通信技术中,在一个给定信道上可以满意地传输信号的频率范围。例如话音级信道上通频带为300-3000赫兹。
In communications,the range of signal frequencies that can be satisfactorily transmitted on a given channel,e.g. the passband on voice grade channels is300-3000Hz. 在通信技术中，在一个给定信道上可以满意地传输信号的频率范围。例如话音级信道上通频带为300－3000赫兹。
In communications, the range of signal frequencies that can be satisfactorily transmitted on a given channel, e.g. the passband on voice grade channels is300-3000Hz. 在通信技术中，在一个给定信道上可以满意地传输信号的频率范围。例如话音级信道上通频带为300－3000赫兹。参阅Hz。
So we suggested that the mechanism of SSCC for X70 grade line pipe steel is synergism of anodic dissolution and hydrogen embrittlement. 分析表明X70管线钢的SSCC受阳极溶解和氢脆共同控制。
In communications, the range of signal frequencies that can be satisfactorily transmitted on a given channel, e.g. the passband on voice grade channels is 300 3000Hz. 在通信技术中,在一个给定信道上可以满意地传输信号的频率范围。
Longitudinal Slope For Grade Line 纵断坡度
Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
Simple Calibration of Underground Grade Line of Inclined Drift 井下斜巷腰线的简易标定法
His vibrant voice commove the air. 他响亮的声音振动了空气。
There was a tremor in her voice. 她的声音有点颤抖。
He's not in the first grade as a musician. 他不是第一流的音乐家。
Her beautiful voice charms everyone. 她优美的声音迷醉了每个人。
Business is now on the up grade. 目前生意蒸蒸日上。
A man's voice is usually lower than a woman's. 男子的嗓音通常比女子的低。
He had such a bad cold he lost his voice. 他患这么重的感冒，嗓子失声了。
Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
I suspected from his voice that he meant mischief. 我从他说话的声音就怀疑他不怀好意。
She asked me in a small voice what time it was. 她低声问我现在是什么时候了。