在有效期内必须校准检测仪器，并保存校准记录，且不得随意摆弄

在有效期内必须校准检测仪器，并保存校准记录，且不得随意摆弄

ผลลัพธ์ (อังกฤษ) 1:

Within the validity period must be calibrated testing instruments, and save the calibration record, and not fiddle

ผลลัพธ์ (อังกฤษ) 2:

In the period must be calibrated testing equipment, and calibration records saved, and shall not free to play

ผลลัพธ์ (อังกฤษ) 3:

In the period of validity, the instrument must be calibrated, and the calibration records shall be kept and shall not be allowed to play.