求翻译：混凝土由混凝土工厂生产，由混凝土输送车运送到位，用汽车吊配合灌注，钻孔桩水下混凝土灌注是重要工序，钻孔经成孔质量检验合格，监理工程师签证后方可开始灌注工作。是什么意思？

Concrete from the concrete plant, in place by the concrete delivery trucks, car hanging with perfusion, the pouring of concrete bored piles underwater is an important process, drilling Kong Jingcheng hole quality inspection, supervision engineers work visa before starting perfusion.

Concrete by concrete factory production, by concrete transportation vehicles, auto cable tie in with the bored, bored piles under water is pouring of concrete, holes have been important processes into a hole quality testing qualified, supervising engineers perfusion may commence only after work visa

The concrete by the concrete plant production, ships the arriving by the concrete transport vehicle, with the mobile crane coordination irrigation, the drill hole pile submarine pouring of concrete is the important working procedure, the drill hole after becomes the hole performance test to be quali

Concrete from the concrete factory production from truck-mounted concrete conveyor transporting, crane combined with bored, bored pile underwater concrete pouring is an important process, drilled hole quality inspection, supervision engineers work visa only after starting infusion.

Concrete from the concrete plant, in place by the concrete delivery trucks, car hanging with perfusion, the pouring of concrete bored piles underwater is an important process, drilling Kong Jingcheng hole quality inspection, supervision engineers work visa before starting perfusion.