安全腰带 meaning in English

body and soul lashing
lap belt
lap strap
lap-strap

Have been put into use and upgraded for many years , perfect quality and tehnology obtained day by day . introduced hot pressing high frequency adhesive equipment and high density sewing machines are used to make the body of airboat , the parts of the body is sewed together in high density before they are adhesived by hot high frequency , three strings used as safety belt are added to the body , the clothe for the body has been strictly examined to ensure no gas escaping
遥控航空广告飞艇艇身采用先进的进口导轨辊压高频热合机及高密脚工业缝纫机承制。艇体在艇瓣热合之前先用结实的线将合线紧密缝合，然后用高频热合机热合，并在艇体上加制了三道束身安全腰带，艇体布料经过严格的光透检漏法严查，确保不漏气。