Primary gastritis may be caused by the ingestion of caustic or irritating chemicals . 由于采食有腐蚀性或有刺激性化学物质而引起原发性胃炎。
2.
The silicon growth cones sense this simulated diffusing “ chemical ” and drag their softwires up the gradient ? toward the charge ' s silicon neuron source ? by updating the look - up table 矽生长锥侦测到这种扩散的刺激性化学物质后，就会更新查询表，并且将软线移向高浓度的地方，也就是朝释出电荷的矽神经元源头前进。
