筛管

筛管	shāi guǎn	(botany) sieve tube
筛	shāi	(bound form) a sieve / to sieve; to sift; to filter / to eliminate through selection / to warm a pot of rice wine (over a fire or in hot water) / to pour (wine or tea) / (dialect) to strike (a gong)
管	guǎn	variant of 管
管	Guǎn	surname Guan
管	guǎn	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 in 管...叫 constructions / writing brush / (coll.) to / towards