What throttle technique does the CDL manual recommend for a tank vehicle driver going through a curve?

AAMVA CDL Manual, Section 8.3.3 (Curves), p. 8-8-2

This specific slow-then-accelerate technique keeps the vehicle's weight balanced and the tires gripping properly through a turn. Using the wrong technique, such as braking mid-curve, can upset the tank vehicle's balance and contribute to a rollover.