To determine the safety water level and the warning water level is of chiefly assignment for the new gauge.

确定各水文站保证水位和警戒水位，是新建水文站的首要工作任务之一。

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Such as saw water gauge at run time with dull not beating the water, should immediately find out the reasons, prevent the formation of false water level.

如在运行时看见水位表内有水面呆滞不跳动，应立即查明原因，防止形成假水位。

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When a differential pressure water - level gauge is used to measure the water - level in the vessel, large uncertainty can be induced because of the change of media density in the vessel.

在高温高压容器中采用差压式水位计测量水位的方法，通常由于容器中介质密度的变化给测量带来很大误差。

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We saw a number of Electric Imp demos and appliance ideas at the booth including a simple hand-held "detonator" toggle switch with LED, seven-segment counter, water level sensor, servo-controlled gauge, RGB light, power socket, Christmas light, power monitor, toy washing machine, 16x16 LED display and receipt printer (the latter two being combined to show the avatars and tweets of anyone mentioning the Electric Imp) -- all Internet aware.

ENGADGET: Hands-on with the Electric Imp at Maker Faire (video)