दशदण्डो रज्जुः ॥ कZ_०२.२०.२१ ॥
daśadaṇḍo rajjuḥ
রজ্জু (মাপার দড়ি) দশ দণ্ডের সমান।
To create a scalable hierarchy of measures so field survey can convert consistently between staff-measure and rope-measure.