The pulse is collected by photoelectric-sensor,and it is converted into pulse voltage signal through the signal processing circuits of pre-amplifying,LPF,integral comparator and so on,then the pulse voltage signal inputs the single chip microcomputer which can calculate heart-rate and display.
利用光电传感器采集人体脉搏信号,经过前置级放大、滤波、积分比较等信号处理电路,将其转换成脉冲电压信号,再利用单片机对脉冲信号进行处理计算出心率并显示。
Analysis and Experimental Research of Prestage Jet Flow Field in Hydraulic Servo Valve;
伺服阀前置级射流流场分析及实验研究
front mounted double reduction final drive
前置式双级主减速器
Revoke the advanced security privileges from the current user.
吊销当前用户的高级安全设置特权。
The input power sub-system and output power control of LHW system in HT-7 tokamak
HT-7装置低杂波前级系统及微波输出控制
Before HyperTerminal can dial or make connections, you must provide information about your location
在可以拨超级终端或连接之前，必须提供有关位置的信息
To come or go before in time, order, rank, or position.
抢先，居先在时间、次序、等级或位置上处在前面或领先…
Development and application of the front terminal VRLA lead-acid telecom batteries for access network
接入网电信级前置端子阀控式铅酸蓄电池的开发与应用
Place the front wheels in the straight-ahead position.
置前轮于正前方位置。
Setup may have been unable to use your current proxy server settings. Click Advanced if you know your proxy settings.
安装程序无法使用当前的代理服务器设置。如果您知道代理服务器的设置，请单击“高级”按钮。
Setup may have been unable to migrate your current proxy settings. Click the Advanced button if you know your proxy settings.
安装程序无法移植当前的代理服务器设置。如果您知道代理服务器的设置，请单击“高级”按钮。
The ST360 is equipped with upgraded high voltage and an internal preamplier allowing operation with optional scintillation detectors for gross gamma counting.
ST360带有升级的高压和一内置的前置放大器，可以控制不同的闪烁体探测器进行总γ数。
Usefully it also incorporates a braze-on type front derailleur mount, so extending the gear range shouldn't be a problem.
同时上面也贴心的预留前变速器组装位置，在未来升级时不会有任何问题。
Any noise characteristic of the preamp circuit is attenuated along with the signal, unlike circuits where the volume control is before the input.
与一些音量控制置于输入端的电路不同，这个前级放大器的特征噪声能够随同信号一起衰减。
"Electric seat adjusters are used on front seats to adjust the seat height, position, and tilt (on some models)."
电动座椅调节器可调节前排座椅的高度和位置。在某些高级轿车中,还可调节座位的倾斜角度。
Verify that all advanced security information on the source and destination key management services is backed up prior to initiating the export process.
启动导出过程之前，请验证是否备份了源和目标密钥管理服务的所有高级安全设置信息。
At present, the superpowers are armed to the teeth with nuclear weapons, placing the people of the whole world under their nuclear threat.
目前，超级大国用核武器武装到了牙齿，把全世界的人民都置于他们的威胁下。
Upgrade databases in their current location. Requires additional space for temporary files used during the conversion.
在数据库当前所在位置升级数据库，在转换期间使用的临时文件需要额外空间。
front cell focusing
【光】前置镜组封焦