نمایش نتیجه 1 تا 1 از 1 نتیجه یافت شده برای line spooler:
n: a device fitted on the drawworks and used to cause the fastline to reverse its direction on the drawworks drum or spool when a layer of line is completed on the drum and the next layer is started.
n: a rubber component that fixes on the drillwork of rig, which makes fast line begin reversely at the another layer after completion of one layer on the cyliner.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
