stela -tel- gismu

x1 is a lock/seal of/on/for sealing x2 with/by locking mechanism x3.

See also ckiku.


In notes:

ckiku
x1 is a key fitting/releasing/opening/unlocking lock x2, and having relevant properties x3.
denstela
s1=d2 is a zip fastener for sealing s2 by mechanism d1.
ga'orgau
gas1 shuts gan1, preventing passage/access to gan2 by gan3.
jbobesna
x1=b1=l1 is a Lojbanic brain of x2=b2, Lojbanic in aspect x3=l2.
telcaugau
g1 unlocks/unseals c1=s2 using lock/seal s1 with mechnism s3.
telga'o
g1=s2 is locked, preventing access to g2 by g3, the lock being s1 using mechanism s3.
telgau
g1 locks lock s1 on s2 by mechanism s3.
toltelgau
g1 unlocks lock s1 on s2 by mechanism s3.