先應用易傷，再應用硬度與能量抗性。 (https://paizo.com/threads/rzs2l7ns&page=1143?Ask-James-Jacobs-ALL-your-Questions-Here#57118)
You need to determine the total amount of damage the robot WOULD take before applying hardness and electricity resistance. So once the damage is determined, first thing you do is apply the vulnerability effect to get the total damage. Hardness and resistance kick in after that.
帶有易傷的攻擊，有可能忽略硬度。 (https://paizo.com/threads/rzs2rbw0?Help-with-creatures-in-Half-Dead-City#3)
The animated objects are constructs, so they are now creatures, not objects. As creatures, energy damage is not halved against them (in effect, becoming a creature trumps the normal object rules). So they take full damage from energy attacks (150% if they are vulnerable to that energy type), then hardness is applied. However, page 174 of the Core Rulebook states (under "Vulnerability to Certain Attacks") that "Certain attacks are especially successful against some objects.In such cases, attacks deal double their normal damage and my ignore the object's hardness."
Even though the animated objects are no longer "objects," I would still apply this rule about overcoming hardness to them in this adventure (but the 150% creature vulnerability trumps the double damage to an object part of the rule), as hardness can be quite difficult to overcome for low-level PCs. So if the PCs use fire against the warrior dolls, for example, it would deal 150% the normal damage, and ignore the hardness. Other energy damage would deal full damage which would ten be reduced by hardness, the same as for any other attack against it.