仙子玉腿缠腰娇喘迎合,亚洲精品高潮久久久久久日本,国产精品成人久久,国产精品18久久久久激情,久久九九免费看少妇高潮A片

冠誠鉆探抽沙船：
清淤船，即清除水底沉積物的工具。動力一般有柴油機(jī)，電機(jī)兩種。船體即浮體，采用拼裝箱型結(jié)構(gòu)。有清淤裝置，動力裝置，傳送裝置等。由動力驅(qū)動清淤裝置清除水底沉積物，由傳送裝置送出到指定位置。挖斗式清淤船即鏈斗式挖沙船
絞吸式清淤船是清淤船的主用船型，由浮體，鉸刀，上吸管，下吸管，泵，動力等組成。他利用下吸管前段的鉸刀，耙頭裝置將水底沉積物切割攪動疏松后，經(jīng)下吸管由泵吸起，有上吸管送出到指定位置。此船效率高，成本低。根據(jù)船型每小時處理沙水混合物在50方至500方。目前一些超大型清淤船處理能力已超1000方。
 

Crown-drilling pumping sand:
Dredging vessels, namely removal tool underwater sediments. Generally there are diesel powered motor two kinds. That buoy hull, using assembled box structure. Has dredging means, power means, transmitting means and so on. Powered device cleared by dredging the bottom sediments, sent by the transmitting device to the specified location. Bucket dredging boat that chain bucket dredgers
Cutter suction dredging ship is the ship's main dredging ship, the floating body, reamers, on straw, under straw, pumps, power and other components. He used under straw front of reamers, rake head unit will bottom sediments stirred loose after cutting through a straw by pumping down from there sent to the specified location on the straw. This boat high efficiency and low cost. 50 square sand-water mixture to 500 per hour according to the ship side. At present, some large dredging boat handling capacity exceeded 1000 party.