I can’t pass Portal 9 in Half-Life 2. Please give me a guide to the entire process! !

Chapter 9 Nova Mine

Push the door from the starting room (1) to the cell area (2), go down the stairs to the underground cell and find the hole in the wall (3) to enter In the guard room (4), go to the corridor and see the turret attacking the ant lion. Use the gravity gun to destroy the turret so that the ant lion can pass through the prison. Go forward to the stairwell (5) and return to the first floor. Find the health and power recovery point on the wall of the guard room (6). The monitor can see the security situation throughout the prison. Go to the second floor from the stairwell (7), go forward in the passage (9) and destroy the two turrets, enter the gate they protect, there is a room with a pool (10), jump into the water and swim to the opposite platform (11). Follow the passage into the room with the blown-out ceiling (12), jump along the piled cement slabs to the second floor, and go forward to the cell area (13), where you will encounter four headhunting crabs. The road ahead is closed, and you can jump from the damaged floor to the first floor. Go out to the hall (14). There are two turrets on the platform (15). Throw grenades to blow them up. Go up the stairs to the top and follow the corridor. Go to the room (16) to get supplies, smash the boxes blocking the corridor, run to the end and jump over the railing to the hall (17). Here you encounter the second ant lion guard. Fight while retreating, and keep using the gravity gun. Throw oil barrels and other objects at it, and use grenades or grenades if you have them on you. After blowing it up, ant lions will jump out of the holes in the cell one after another, becoming a good helper in the battle later.

Enter the corridor (18) to start the battle. Focus on using the shotgun to deal with the flying saws in the air. The ant lion is the nemesis of the escort team. Arrive at the corridor (19) of the cell area. There is an electromagnetic barrier in the control room (20). Use the gravity gun to knock off the plug on the wall to eliminate the barrier. Enter the room and pull down the switch on the wall to open the iron door of the corridor. Go upstairs (21) and enter the guard room (22). Use the switch on the wall to open another gate (23). Enter the corridor (24) with the ant lion. After clearing all the turrets and soldiers, use the gravity gun to clear the wall. Remove the gate, break the cover to enter the ventilation duct, climb into the exhaust room (25), and use a gravity gun to pick up debris in the room, such as shovels, wooden boards, buckets, etc. that jam the blades of the huge fan. You can crawl through the fan gap. Go to the corridor (26) and shoot the enemies, use the gravity gun to destroy the two turrets, and unplug the wall plug to eliminate the electromagnetic barrier. At this time, the ant lions can join up. Then go up the stairs and enter the cell area (27) to start the battle. Shoot the machine gunner on the platform in the distance. There are laser detectors on the corridor. The ant lions will detonate them one after another. Rush to the front corridor and blow up the two turrets with grenades. Enter the nearby corridor to clear out the machine gunners and turrets. Go up the stairs to the fourth floor platform to find the control room (28). Find the health and power recovery point on the wall. You can see enemy reinforcements arriving from the window. Send ants. The lion went to deal with them. Press the switch on the wall of the room, return the same way to find the open iron gate (29), enter the corridor (30) and encounter several enemy soldiers, send the ant lion to kill them. There are two turrets in the corridor ahead (31), blow them up with grenades. Enter the laundry hall (32). The ant lion is still used as the main force in the battle here, and the gunners who are farther away are shot with crossbows. Go up the vertical ladder to the kitchen (33). There are three turrets here. The ant lions here will destroy the gas pipes and cause fires. Go through the kitchen and go up the stairs to the guard room (34) to get supplies. Use the recovery points on the wall to replenish your health. . Jump from the broken window of the guard room to the hall (35). Here you will encounter the powerful ant lion guard again. After killing it, you can find the messy passage (36) from the side of the hall. At this time, the road ahead and behind will be blocked. , climb up the platform to the left to find a way out, and jump down from the shaft at the end.