Aerotropism A TROPISM in which the orientating stimulus is oxygen. 一种刺激方向为氧气的向性运动。
Autonomic movements (autogenic movements;spontaneous movements) Movements of plants in response to internal rather than external stimuli. 对刺激做出反应但不趋向刺激源的一种运动。
Difference limen (07) The minimum change in stimulus that can be detected. 最小可覺差(07)感官能夠區別差異的最小刺激。
Cleavable block copolymers could be cleaved into separate homopolymers under external stimuli (such as heat, light or agents). 这种聚合物在外部刺激下(如热、光、特殊试剂等)可以发生解离,从而变为两段均聚物。