"an"的搜索结果

nurse is shown standing near sewage pipes outside of an infectious disease hospital in johannesburg

标签: nurse,is,shown,standing,near,s 浏览: 16

nurse in an isolation ward during the 1975 marburg outbreak in johannesburg south africa

标签: nurse,in,an,isolation,ward,dur 浏览: 14

hospital nurse was photographed while checking the vital signs of an isolated hospital staff member

标签: hospital,nurse,was,photographe 浏览: 16

washing hands with soap and water or an alcohol scrub

标签: washing,hands,with,soap,and,wa 浏览: 17

this prepared slide offers an example of the appearance of a satisfactory thick film blood smear

标签: this,prepared,slide,offers,an, 浏览: 14

this giemsa stained slide depicts an example of properly prepared thick and thin film blood smears to be examined

标签: this,giemsa,stained,slide,depi 浏览: 16

prepared slide offers an example of the appearance of marginal quality thick and thin film blood smears

标签: prepared,slide,offers,an,examp 浏览: 20

preparation the thick film was allowed to dry on an uneven slanted surface rendering an improper result

标签: preparation,the,thick,film,was 浏览: 17

larva left and an adult female right of the oriental rat flea xenopsylla cheopis

标签: larva,left,and,an,adult,female 浏览: 15

historical photograph inside of an operating room suite during a surgical procedure

标签: historical,photograph,inside,o 浏览: 16

entomologic field technicians investigating a tropical site in haiti known to be an anopheles spp mosquito

标签: entomologic,field,technicians, 浏览: 18

wing venation of an unidentified deceased dragonfly

标签: wing,venation,of,an,unidentifi 浏览: 18

proximal region of the stinger apparatus of an unidentified hymenopteran insect

标签: proximal,region,of,the,stinger 浏览: 20

entomologic field technician using an aspiration suction tube in order to trap adult mosquitoes

标签: entomologic,field,technician,u 浏览: 13

microbiologist in the influenza branch while she was conducting an experiment inside a biological safety cabinet

标签: microbiologist,in,the,influenz 浏览: 12