The warm high ridge at the middle and low troposphere and the lower pressure of the ground all provide the good circulation background of this heavy fog.

对流层中低层的暖脊和地面均压场的维持是此次大雾形成的良好环流背景。

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Good circulation is crucial to skin.

顺畅的血液循环对皮肤健康是至关重要的。

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Good circulation is crucial to skin health.

顺畅的血液循环对皮肤健康是至关重要的。

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Instead, new medical devices allow valves to be fixed or replaced with tiny catheters that are snaked up from the groin, similar to the way stents are implanted in the heart to open clogged arteries when people have heart attacks or pain from a lack of good circulation in the heart muscle.

FORBES: New Heart Valves Prove We're Living In The Future

But this is good for circulation.

BBC: Stuart Kuttner, Managing Editor, News of the World

This is, as the doctor says, good for the circulation.

FORBES: Magazine Article