When  0.6–1.4 is the b r (t) what is the h ci (ka/m)?
create table table_2282444_1 (h_ci__ka_m_ varchar, b_r__t_ varchar, PRIMARY KEY (h_ci__ka_m_))
select h_ci__ka_m_ from table_2282444_1 where b_r__t_ = "0.6–1.4"