The term 'chainman' derives from previous usage of measuring chains. An assistant would shift the significantly close in the chain under the surveyor's path. সেবা সহজিকরণ ইনোভেশন কর্নার ইনোভেশন টিম Survey specialists frequently work survey instruments, operate surveys in the sphere, do survey calculations, or draft plans. A technician ordinarily https://jimmyk037aks2.liberty-blog.com/profile