本装置由高压防喷管、高压防喷盒、高压注脂泵、高压密闭闸门及转换接头等组成。
This setting was constituted by high-pressure lubricator, blowout preventer, injection oily pump, closed gate valve and conversion tie-in.
该装置包括有一个喷 管，喷管的后端通过软管与沥青泵连接，喷管的前端安装有喷头。
The hand-held asphalt-spraying device includes a nozzle, the rear end of which is connected with an asphalt pump via a hose and the front end of which is provided with a spray head.
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