Complex sentence: It has been proposed that the stakes were lashed in pairs at intervals along a log or beam to form a Cheval de frise, this could be used, for example, as a moveable barrier to bar a gateway.
Split into simpler sentences: It has been proposed that the stakes were lashed in pairs at intervals along a log or beam to form a Cheval de frise. This could be used, for example, as a moveable barrier to bar a gateway.