The apparatus consists of a single board microcomputer, propeller type velocity sensor, tail fin type flow direction sensor and corresponding interface circuits and software.

该仪器以单极微机为核心，配置旋浆流速传感器、尾舵式流向传感器、相应的接口电路和软件。

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Besides existing the single transmission questions, two grades of reducer have other problems, such as dimension coordinate, transmission radio distribute, power flow direction and balancing.

双级减速器除了存在单级的传动问题以外，还有外形尺寸协调、传动比分配、功率流分流及机构平衡等问题。

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Venous blood within the valve to help the leg from a single direction of flow back from the heart.

在阀门静脉血帮助脚倒流的单一方向发自内心的。

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Each throng seems to be governed by a group mind and appears to be acting as a single organism, so quickly do they shift direction and flow into new shapes.

ENGADGET: Editorial: Tech is a flock of starlings

The currents of history may ebb and flow, but over time they move -- decidedly, decisively -- in a single direction.

WHITEHOUSE: President Obama Speaks to the Australian Parliament