However, biomass particles have unusual properties which make them difficult to fluidize and handle.
Most VR development toolkits are proprietary in nature, which make them difficult to interoperate across platforms.
Their vastly different designs, however, make them difficult for system designers to measure, compare and revise.
But the geological problems make them difficult to be filled as grouting materials easily run out before it solidified.
Specialization of these MPSoCs make them difficult to program and verify.
Their mobility would make them difficult to protect, Ms. Betts explained.
The nature of these small, easily mobile businesses make them difficult to prosecute.
Soft tissue artifact (STA) distort marker-based knee kinematics measures and make them difficult to use in clinical practice.
We find that the gestures generated diverge significantly in ways that make them difficult to interpret by some recognizers.
And these lenses have parabolic surfaces, which can make them difficult to fabricate.
As a group, cuckoos are forest birds, often inhabiting dense thickets that may make them difficult to observe.
