At Stumps, Australia's score read 82/0, with visitors leading by 92 runs. Beth Mooney (33) and Phoebe Litchfield (41) were unbeaten at the crease when the stumps were drawn for the day.
England's Tammy Beaumont batting at 195 and Sophie Eccleston batting at 9 are giving a tough time to Australian bowlers in Nottingham on Saturday.
At the end of the session, England are 428/6 and still trail by 45 runs.
Tammy Beaumont and Nat Sciver-Brunt's counterattack against Australian bowlers brought the game back to parity on the second day of the one-off Ashes Test at Trent Bridge.
England made a strong start in their reply to Australia's 473 in the women's Ashes match with opener Tammy Beaumont's going strong on 41 and Heather Knight batting on 12 as they made 68 runs at the loss of one wicket at Tea on the second day of the one-off Test between the two sides
Beaumont scored her ninth ODI century with a superb knock of 119 in the third and final game of the ODI series against the Proteas in Leicester on Monday.
Chasing 372, the opening duo Laura Wolvaardt and Andrie Steyn provided a glimmer of hope for visitors when they put on 60 inside the first eight overs of the innings.