For example, a 40 Nominal Bore U-bolt would be asked for by pipework engineers, and only they would know what that meant.
ຍົກຕົວຢ່າງ, 40 Nominal Bore U-bolt ຈະຖືກຮ້ອງຂໍໂດຍວິສະວະກອນທີ່ເຮັດວຽກທໍ່, ແລະພຽງແຕ່ພວກເຂົາຈະຮູ້ວ່າມັນຫມາຍຄວາມວ່າແນວໃດ.