No definitions found for 'heavy particle counter'
Perhaps one of these:
heave offering,
hebei province,
heavy purse,
heavy particle,
heavy fire,
hay fever,
hypoparathyroidism,
hebephrenic,
hippophae rhamnoides,
hebephrenia,
hypopharynx,
hevea brasiliensis,
hypoproteinemia,
hebephrenic schizophrenia,
hypobranchial