因此，松散的沙砾缓冲区被粗糙的柏油碎石面取代。
The loose gravel traps are therefore being replaced by rough tarmac.
一面是光滑的皮质，装饰有银链边饰，反面是粗糙的谷粒一样的皮质。
Smooth leather with silver chain edging one side, and heavy grain leather on the reverse.
在超声探伤中，经常遇到测试面较粗糙。
Test surfaces are usually rough in ultrasonic flaw detection.
我所需要的是一条宽带子，一面光滑一面粗糙，这样拿起来才不容易打滑。 综。
What I need is a wide ribbon, one side smooth and one side rough, so its not slippery, easy for it to hold.
我所需要的是一条宽带子，一面光滑一面粗糙，这样拿起来才不容易打滑。 综。
What I need is a wide ribbon, one side smooth and one side rough, so its not slippery, easy for it to hold.
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