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the include relationship implies that the included use case must be enacted, whereas the extend relationship implies that the extending use case may be enacted.

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Q: What is Difference between include and extend in use case diagram?
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How do you extend concrete setting time?

you can buy primers from you local hardware or diy store to extend setting time


What is the difference between freeware software and open-source software?

Freeware is software for which the author or authors are not seeking monetary compensation. Open-source software is software whose authors have decided to allow other programmers to access the software they have created so as to invite community improvement.


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What is the difference between boot and shoe?

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Do you need to use TC extension wire to connect a thermocouple or can you use shielded cable?

You must use thermocouple wire (of the same type as the thermocouple) to extend the circuit. If you switch to a different wire the point of connection between the two becomes a thermocouple junction itself, and the resulting voltage from that junction will skew your reading. You can use any wire to extend a thermocouple connection if you know the temperature of the junction where the thermocouple wire ends--this becomes the reference junction.

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Polk believed that the US ought eventually to extend to the Pacific and include the land between.


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What is difference between transitive and intransitive trust?

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Well, whirlpools are vortices of water. Tornadoes are vortices of air that extend from the base of a thunderstorm to the ground and are strong enough to produce damage.