Specimens from all over the world come in, still encased in the rock or mud where they were found, and it's the job of the fossil preparators to get the skulls, femurs and teeth out.
世界各地的标本在被运到这里时,还被密封在岩石或发现源地的污泥之中,只有经过化石准备工作以后,那些头颅、股骨和牙齿才能显露出来。
I tried for one last time to get my car out of the mud.
我最后一次尝试把我的车从泥巴里弄出来。
If we all take a push at the truck, we might get it out of the mud.
如果我们都来推一把,也许能使卡车从泥里开出来。
Let's take a push at the car, get it out of the mud.
咱们推推汽车,就能从泥里出来了。
Stop for 15-40min (depending on the depth of holes) after completion of drilling, and use the drilling rig to get out the impurities such as sand, etc. settled without controlling the mud.
钻进完成后,停15-40分钟后,(根据孔深决定时间)用钻机打捞一次沉降下去的砂子等杂质,不要控浆。
Stop for 15-40min (depending on the depth of holes) after completion of drilling, and use the drilling rig to get out the impurities such as sand, etc. settled without controlling the mud.
钻进完成后,停15-40分钟后,(根据孔深决定时间)用钻机打捞一次沉降下去的砂子等杂质,不要控浆。
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