The f-stop, otherwise known as the aperture, determines your depth of field (the area in focus) and how much light can pass through the lens to reach the sensor.
f制光圈(或称光圈)决定相机的景深(对焦区域)以及有多少光能通过镜头到达传感器。
The two types of short cracks stop propagating on reaching some depth.
两种短裂纹长大到一定深度时均停止扩展。
It's available to stop adding polymer mud after drilling to the designed hole depth of 3-5m.
在钻孔至将近设计孔深3 - 5米时，可停止添加聚合物泥浆。
Radial distortion of the flexible component in the stop valve can be adjusted so as to ensure the joint depth between flexible screw thread trepanning circular groove and screw thread on the screw.
截止阀的柔性元件的径向变形值可以调节，保证柔性螺纹套的环槽与螺杆上的螺纹的接合深度。
The turret depth stop can be used to set 5 different depths. One of the turret stops is adjustable.
塔形限位器可以设定5种深度，其中之一是可调的。
Slide the depth adjustment rod (Q) down so that it meets the lowest turret stop (p).
滑下深度调节杆(Q)使其接触最低的限位座(P)。
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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