pole stand 圆杆材

pole wood 圆杆材

poliomyelitis 脊髓灰质炎

political map 政区地图

polje 灰岩盆地 pollution of plant nutritions 植物营养物质污染

pollution of river 河鳞染

pollution sources 污染源

polonium 钋

polster plant 垫状植物

pollinator 传粉者

pollutant 污染物

pollutant behavior 污染物行为

pollutant destiny 污染物前途

pollutant pathway 污染物前途

pollutant type 污染物类型

polluted fish 污染鱼

polluted water 污染水

pollution 污染

pollution abatement 污染抑制

pollution by organochlorine pesticides 有机氯农药污 染

pollution by organophosphorus pesticides 有机磷农药

污染

pollution free technology 无污染工艺

pollution load 污染负荷

pollution of atmosphere 大气污染

pollution of heavy metals 重金属污染

pollution of paddy soils 水稻土污染 polyad 多价物 polychromatic transmittance 多色透过率 polyconic projection 多圆锥投影 polycyclic relief 多循环地形 polyenetical mountains 复成山地 polygenetic conglomerate 复成砾岩 polygenetic soil 多元土壤 polygenetic terrace 多成因阶地 polygenetic volcano 复成火山 polygeosyncline 复地槽 polygonal bog 多边形沼泽 polygonal fissure soil 多角形裂缝土 polygonal soil 多边形土壤 polygonal traverse 导线 polygonal tundra 多边形冻原 polygonometric point 导线点 polygonometric side 导线边 polygonometric work 导线测量