侦毒管

detector tube

to scout / to spy / to detect

old variant of 偵|侦[zhen1]

poison / to poison / poisonous / malicious / cruel / fierce / narcotics

variant of 管[guan3]

surname Guan

to take care (of) / to control / to manage / to be in charge of / to look after / to run / to care about / tube / pipe / woodwind / classifier for tube-shaped objects / particle similar to 把[ba3] in 管...叫 constructions / writing brush / (coll.) to / towards