[16] 白钊成,张家礼.不同尺度下街道空间绿化品质测度研究与提升策略:以杭州市中心城区为例[J].林业与生态科学,2021,36(4):442-450. BAI Z C, ZHANG J L. Research on Urban Street Greenery Quality Measurement Under ...
f. Prolonged overloads or breakdowns may cause the electric motor to overheat, and to release noxious smoke; remove the power immediately as a precaution and do not ap- proach the pump at least until you have pro- vided ventilation to drive out the smoke. Take care not to breathe in ...