चतुरङ्गुलो धनुर्ग्रहः ॥ कZ_०२.२०.०८ ॥
caturaṅgulo dhanurgrahaḥ
ধনুৰগ্ৰহ (ধনুৰ ধৰা অংশ) চাৰি অঙ্গুল পৰিমাপৰ।
It standardizes production and inspection, reduces failure risk in combat, and enables predictable procurement and inventory control.