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p-＞prior=q；q-＞next=P；p-＞prior-＞next=q；q-＞prior=p-＞prior； q-＞prior=p-＞prior；p-＞prior-＞next=q；q-＞next=p；p-＞prior=q-＞next； q-＞next=P；P-＞next=q；q-＞prior-＞next=q；q-＞next=P； p-＞prior-＞next=q；q-＞next=P；q-＞prior=p-＞prior；p-＞prior=q；
wear take on take off put on
keep it out make it out keep out it keep off it
keep it out make it out keep out it keep off it
take off not to take off not put on not take off
check and regulate the water level close the air cock once fires are lit blowdown the gage glass crack the steam stop to assure protective steam flow
p－＞prior－＞prior p－＞prior－＞prior s－＞prior－＞next＝s s－＞prior－＞prior＝s
t-＞prior-＞next= t-＞next; t-＞next->prior= t-＞prior; t-＞prior-＞prior= t-＞prior, t-＞next->next= t-＞next, t-＞prior-＞next= t-＞prior; t-＞next->prior= t-＞next; t-＞prior-＞prior= t-＞next; t-＞next->prior= t-＞prior;
not to take off not take off to not take off take off
take off not to take off not put on not take off
went off gave off put off gave in
cold fuel oil low fuel oil pressure low atomizing steam pressure water in the fuel oil
excessive purging before lighting off insufficient trail for ignition period a faulty transformer in the ignition circuit insufficient purging before lighting off
you light lighting you’ll light for lighting
keeps out the cold keeps the cold away keep off the cold keep the cold up
keep it out make it out keep out it keep off it
not put on not take off to not take off don’t put on
not put on take off to put on not take off
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