Misperceptions of the amount of time and labour involved in producing and installing an outdoor electrical sign can carry over into misperceptions of estimated project costs.

他们会对制作安装户外电子标识中需要花费的时间和劳力产生误解，这就会导致他们错误地估计项目成本。

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This equipment was composed of air pumping, mixing, sign detecting and electrical controlling components.

设备主要由气体传输、气体混合、信号检测和电气控制几大部分组成。

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In 2010, we sign the agreement of electrical security for motor vehicle to exploit related products.

2010年，与清华大学签订了汽车安全电子项目技术合作协议。开发生产汽车安全电子及相关产品。

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When you perform certain gestures with your hand--such as touching your thumb to your index finger in the "okay" sign--there are electrical signals associated with that gesture that pass through the nerves in your upper arm as they carry commands from your brain to your hand.

FORBES: Digital Tools