Describes principle and construction of verification device for surface thermometer with heat pipe.
叙述一种热管式表面温度计检定装置的原理、结构。
The principle of the electrical pen for online signature verification discussed theoretically.
从理论上分析了在线签名鉴定电笔的原理。
The principle of the electrical pen for online signature verification discussed theoretically.
从理论上分析了在线签名鉴定电笔的原理。
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