The eu is acutely aware of this obstacle, so where treaty change is envisaged, it is trying to focus it as narrowly as possible on the euro zone, of which Britain is not a member.

Those changes and the obstacle of endochondral ossification in epiphyseal plate cartilage may be a reason of abnormalities of bone stripes in the zone of bone deposition.

Temperature difference from top to bottom in preheating zone of tunnel kiln is the biggest obstacle for rapid firing, energy saving.