结果表明：它们均能阻断果蝇幼虫神经肌肉兴奋性接点电位，但其阻断时间相差很大。
The results showed that all of the compounds could block the neuromuscular junctional excitation potentials (EJP), but the blocking time had a great difference.
电缆的屏蔽层必须单点连接到参考电位，连接点应尽量靠近信号源的参考电位。
The shield conductor of a shielded cable should be connected to the reference potential at the signal-reference node (Figure 4).
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