保持窦性心动过速。
Demonstration analyzing on quantitative structure of operation risk in Shenzhen high-tach enterprise;
深入探讨和研究石油企业的经营风险和预警管理很有必要。
As an important tach of power system, the safe operation of substation directly influences that of the whole power system.
变电站作为电网的一个重要环节，其安全运行直接影响到整个电力系统的安全运行。
Kits include mounting plate and hardware for mounting to flange or servo mount encoders, making them interchangeable with 5PY DC tach generators.
套件包括安装板安装到安装法兰或伺服编码器和硬件，使之与5PY区盛德发电机互换。
The tach signal is sampled synchronously with the vibration signals. The integral period sampling is implemented by software in the forthcoming process.
对鉴相信号与振动信号进行同步采样，而对振动信号的整周期截取则利用软件实现。
The tach signal is sampled synchronously with the vibration signals. The integral period sampling is implemented by software in the forthcoming process.
对鉴相信号与振动信号进行同步采样，而对振动信号的整周期截取则利用软件实现。
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