焊点细小牢靠、导电性好、无讯号衰减，在经受高温和低温时不会脱落。
Small solid solder joint, electrical conductivity, and no signal attenuation, when subjected to high temperature and low temperature will not fall off.
在这段时间内，突触传导以激化的NMDA受体，并显现大多数是无讯号突触。
During this period, synaptic transmission was primarily mediated by activation of NMDA receptors, suggesting that most synapses were functionally silent.
纽约州长最近也发誓要结束一段在纽约与蒙特利尔之间穿过Adirondack公园的50迈(80公里)州际高速公路的无讯号状况。
And New York's governor has just pledged to end the dead zone along nearly 50 miles (80 km) of interstate in Adirondack Park between New York and Montreal.
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