ResearchTable.builder("灰烬学", c)
        .setIcons(<item:embers:dust_ember>)
        .setTitle("etm.research.ashenology.title")
        .setDescription("etm.research.ashenology.description")
        .addCondition(
            <item:embers:dust_ash>*64,
            <item:embers:crystal_ember>*4,
            <item:embers:ember_cluster>
            )
        .setRewardStages("灰烬学")
        .setRewardCommands(fireworks_big, title("灰烬学"), sound, fireworks_small)
        .build();
ResearchTable.builder("基础材料学", c)
        .setRequiredResearches("灰烬学")
        .setIcons(<ore:ingotAshenMetal>.firstItem)
        .setTitle("etm.research.basic_materials_science.title")
        .setDescription("etm.research.basic_materials_science.description")
        .addCondition(
            <item:contenttweaker:ash_ingot>*16,
            <ore:ingotDawnstone>.firstItem*4,
            <ore:ingotBronze>.firstItem*4,
            <ore:ingotElectrum>.firstItem*4,
            <ore:ingotLead>.firstItem*8,
            <ore:ingotAluminum>.firstItem*8,
            <ore:ingotNickel>.firstItem*8,
            <ore:ingotIron>.firstItem*8,
            <contenttweaker:obsidian_ash>*32
            )
        .setRewardStages("基础材料学")
        .setRewardCommands(fireworks_big, title("基础材料学"), sound, fireworks_small)
        .build();