contract/contract_price_revision/views/account_analytic_account_views.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <record id="account_analytic_invoice_line_form_view" model="ir.ui.view">
        <field name="name">account.analytic.invoice.line.view</field>
        <field name="model">account.analytic.invoice.line</field>
        <field name="arch" type="xml">
            <form string="Line Information">
                <group>
                    <group>
                        <field name="analytic_account_id"/>
                        <field name="automatic_price"/>
                    </group>
                    <group>
                        <field name="product_id"/>
                        <field name="name"/>
                        <field name="quantity"/>
                        <field name="uom_id"/>
                        <field name="price_unit"/>
                        <field name="variation_percent"/>
                        <label for="date_start" string="Validity"/>
                        <div><field name="date_start" class="oe_inline"/> to <field name="date_end" class="oe_inline"/></div>
                        <field name="discount"/>
                        <field name="price_subtotal"/>
                    </group>
                </group>
            </form>
        </field>
    </record>
    <record id="account_analytic_account_recurring_form_form" model="ir.ui.view">
        <field name="name">Contract form price revision</field>
        <field name="model">account.analytic.account</field>
        <field name="inherit_id" ref="contract.account_analytic_account_recurring_form_form"/>
        <field name="arch" type="xml">
            <field name="price_unit" position="after">
                <field name="variation_percent" attrs="{'readonly': [('automatic_price', '=', True)]}"/>
                <field name="date_start" attrs="{'readonly': [('automatic_price', '=', True)]}"/>
                <field name="date_end" attrs="{'readonly': [('automatic_price', '=', True)]}"/>
            </field>
        </field>
    </record>

</odoo>