• Permeability fluctuates drastically (or dramatically, or sharply).

• These loading conditions differ markedly (or sharply, or widely) from the test conditions.

• The heat capacity changes abruptly.

• Jupiter's great mass dramatically increases the velocity of incoming objects.

• The wood has been subjected to pronounced (or drastic, or dramatic, or abrupt, or sharp) humidity changes.

• The steep rise in the cost of coal ...

• A conventional enamel can withstand a sudden temperature change without failure.

• The mass velocities change drastically through the column.

• The treatment of mental illness in the U.S. has changed profoundly in the past 30 years.

• The situation changed abruptly with the developments in nuclear physics and ...

• The extent of adherence varies widely.