Question: When nd 2 fe 14 b (bonded) is the magnet how many measurements of tc (°c)?
Schema: create table table_2282444_1 (t_c__ varchar, magnet varchar, PRIMARY KEY (t_c__))
SQL: select count(t_c__) as °c_ from table_2282444_1 where magnet = "nd 2 fe 14 b (bonded)"