Parts (modified)

today we have, naming of parts
yesterday we had no need
for this knowledge, and tomorrow
we have teachers training,
but today we have..naming of parts
 Lilies from the valleys have 
reached Snowdonia..
he who doth not have..
the necessary componants
will still  be allowed to take part
here we have, the heart
in your case, this is missing
but we can continue as if
it does not matter a shot
precious are petals that forget me not
here is the swivel modulater, which you
reach by swerving and diving
in your case your have too much
please alter the torque,
do not use your thumb,
by Rule of Thumb, any one
I catch using their thumb
will be made an example of
Russian Ivy chains its flowers
harshly to the branch
here we see The Bolt
which is far far easier
with the door ajar
we can ease the bolt
with a nifty spring
at the right opertunity
this you will recognise
by using your under hand
in this case..you have got
runner beans are plenty
climbing high and lowest depths
for today we had the naming of parts