It is very useful system for expression of proteins in high quantity.

I was blessed with an unusual, subtle, but quite useful system.

Any useful system is going to turn whatever you put in into a hash.

Without a blueprint for what we are trying to accomplish, a truly useful system will be impossible to build.

Of course, the more detailed information you have, the more useful a system will be.

By this means, they find a useful system and eat the planets first.

Once you understand it, it is an interesting and useful system.

It is also a useful system to learn the hierarchical structure of organizations within the Canadian public service.

These might enhance the experience but they are far from the most important aspects of what makes a system useful and usable.

They are a useful underground system, particularly in deep winter snow.