They still kept traces of the clan society.
他们还保留了氏族社会的痕迹。
All traces of strange dreaming had vanished with hisrecovery, and my uncle kept no record of his night-thoughts after aweek of pointless and irrelevant accounts of thoroughly usual visions.
因为自痊愈以来，奇怪的梦了无踪迹可寻，一周以来都是些无意义，无联系，寻常的梦境。 之后叔祖父就放弃记录了。
Traces connecting such signals should be kept as short as possible and be adjacent to the ground plane to keep radiation and crosstalk under control.
连接此类信号的走线应保持尽可能短，并靠近铺地层以保持辐射和干扰在控制之下。
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