The research status of scale-resistant property of water quality stabilizer BD-5 for low hardness and low alkalinity surface water is presented in this paper.

文章介绍了BD-5水质稳定剂对低硬低碱度地表水的阻垢性能研究情况。

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A short, winglike control surface projecting from the fuselage of an aircraft, such as a space shuttle, mounted forward of the main wing and serving as a horizontal stabilizer.

鸭式飞机的水平安定面和升降舵从一架飞行器伸出的一个短的翼状控制平面，如航天飞船的机身，被安在飞机翼前方，作为水平稳定器。

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Integral 3-straight rib stabilizer, Integral 4 - Straight rib stabilizer, working surface are provided with carbide insert compound or overlay welding, etc.

整体三、四棱、多棱直棱稳定器，其工作表面有镶硬质合金复合体及堆焊等。

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