It is towed by the surface vessel.
那艘船的锚被拖行着。
A surface vessel can be a cargo ship, an aircraft carrier, or destroyers.
水上船只可以指货船，航空母舰或战舰。
These algae now release their oil, which floats to the surface of the culture vessel.
现在，这些藻类可以释放出藻类油，藻类油能漂浮到培养容器的水面上。
Is why seeing blood vessel from skin surface cyan?
为什么从皮肤表面看血管是青色的？
Is why seeing blood vessel from skin surface cyan?
为什么从皮肤表面看血管是青色的？
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