The problem with the tools and equipment used in the experiment is limited and the number of similar courses are very rare and old tools, little book. They also often need to wait for the bad queue.
The tools and equipment used in the experiments are limited. And of course that is very similar. The backup tools are few and little old. It is also often had to wait.
The problem about the tools and equipments used in the experiments is limited. And the number of courses are very similar But the backup tool and a little less old It also was often had to wait in line.