CREATE TABLE "magnetic_properties" (
  "magnet" text,
  "b_r_t" text,
  "h_ci_k_a_m" text,
  "bh_max_k_j_m_3" text,
  "t_c_c" text
);

Question: When  0.6–1.4 is the b r (t) what is the h ci (ka/m)?
SQL: SELECT "h_ci_k_a_m" FROM "magnetic_properties" WHERE "b_r_t"='0.6–1.4';

Question: When nd 2 fe 14 b (bonded) is the magnet how many measurements of tc (°c)?
SQL: SELECT COUNT("t_c_c") FROM "magnetic_properties" WHERE "magnet"='Nd 2 Fe 14 B (bonded)';

Question: When 720 is the t c (°c) what is the   h ci (ka/m)?
SQL: SELECT "h_ci_k_a_m" FROM "magnetic_properties" WHERE "t_c_c"='720';