... week (five ways: BPD, GS, CRL, FL, and the AC) and so on; has the Chinese and English transformation;16 kind of ... , the mass memory and the surface mounting technology (SMT) and so on; and the product performance is reliable.Technical Parameters:Structure ... , perimeter, area, heart rate, pregnancy week (BPD, GS, CRL, FL, AC) and expected date of childbirthNote: name, serial numbers of case ...