Turquoise seas and white powdery sands fringe the island which will satisfy most tourists.

岛屿周围蓝绿色的海洋和白色粉末状的沙滩边缘迎合了大多数游客的需要。

youdao

An in-service valve suffering from Dezincification has a white powdery substance or mineral stains on its exterior surface.

使用中的阀门如果遭遇脱锌侵蚀，会在阀门外表产生白色粉末或矿物污点。

youdao

The physical attributes of an in-service valve with Dezincification includes a white powdery substance or mineral stains on its exterior surface.

使用中的阀门出现失锌想象时的物理特征包括：在外表面出现白色粉末或矿物污点。

youdao

On September 25, the woman had contact with a letter or package with a white powdery substance and began experiencing symptoms of cutaneous anthrax three days later.

CNN: Cutaneous anthrax most common, most survived

As red earth gave way to gray and what looked like a shoreline, veins of a powdery white mineral appeared in the ground.

NEWYORKER: The Martian Chroniclers