双积分是一种常用的转换技术，具有精度高，抗干扰能力强等优点。
Double integral is a kind of common conversion technology, with high precision, strong anti-jamming capability, etc.
在燃具上使用双控燃气稳压阀，燃烧工况稳定，适应性强，安全性高。
Applying this valve to gas appliance shows stable combustion condition, strong adaptability and high security.
双滑块静音品牌线性导轨，具有刚度强、承载能力大、定位精度高、传动平稳、精度保持性好等优点。
Big brand linear guide rails with double-slider and sound off function have the features of satisfactory stiffness, good loading capacity, steady transmission and high precision assurance.
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