Some found dealing with clients who requested second trimester abortions frustrating, because they found it difficult to understand why women "waited so long".
However, the industrial applications of microforming processes are still limited, because the so-called size effects make it difficult to understand and predict the deformation behavior of the material in microforming.
Automated service composition techniques sometimes recur in what we call 'mystic boxes' in their architectures because they are frequently poorly described, making it difficult to understand what exactly has been done and to evaluate their results.
My American wife finds it difficult to understand why, just because I graduated from France's École Polytechnique and became an engineer of the country's Corps des Mines when I was 21, I was automatically given position after position in the French civil service and in large state-controlled companies until I moved to the United States.
It's hard to interpret what this all means, because it was difficult to understand what Assad was pitching.
In some cases, a component may be working as it was designed to, but can still pose a problem for the owner because it is difficult to understand or operate.
This part of the story gets messy, because it's difficult to understand how Mary Luck so completely reinvented herself without being pushed.
It is probably that the affinity interaction between HSA and L-thyroxin occurs via multi-site binding because it is difficult to understand the low binding efficiency if only mono-site binding occurs.
I DON'T find it at all difficult to understand how Barack Obama thinks, because most of his beliefs are part of the broad consensus in America's centre or centre-left: greenhouse-gas emissions reductions, universal health insurance, financial-reform legislation, repealing the Bush tax cuts for the wealthy, and so forth.
It's hard to write about the Russian Presidential election, not because it is particularly difficult to understand but because the normal language of such things can't describe it.
Our work is harder to appreciate because it's more difficult to understand its steps".
