The procedure includes preparing, boring, setting pipes , manufacturing serous fluid and grouting etc.

施工工艺包括施工准备 、 钻孔 、 打小导管 、 浆液的制作和注浆几部分.

互联网

The pleurae are serous membranes, which mean they secrete a lubricating fluid, called serous fluid.

胸膜为浆膜, 这意味着它们可以分泌润滑液体, 即浆液.

互联网