two-up (and) two-down

abridgment abridgement aerial photograph scale anatomical age ballistic gelatin Berg Alban Blue lias clay control rod cell convective-diffusion equation double acting hammer glycogen-storager disease head house hypophorine location of pirn mainss Penonomé producer goodsproducer's goods rubasse(rubace) tracking force underground diaphragm wall zazpi jausiak (basque)