This paper mainly introduces the D&R history, primary properties, preparation, manufacture and foreground of Al-based amorphous alloy.

主要介绍了铝基非晶合金的研究历史、主要性能、制备、成型以及发展前景等。

youdao

The recipe and preparation of adhesive R-4 for bonding of rubber and metal was introduced.

介绍了橡胶与金属粘合用胶粘剂R-4的配方和制备方法。

youdao

Preparation of (R, R)-fenoterol and (R, R)- or (R, S)-fenoterol analogues and their use in treating congestive heart failure.

非诺特罗和（R，R）-或（R，S）-非诺特罗类似物的制备及其在治疗充血性心力衰竭中的应用。

youdao

R.4: Members of the communities and the Franciscan Festival Foundation were actively involved in the preparation of the nomination through workshops, interviews and other consultations and they provided free, prior and informed consent for the inscription.

UNESCO: Intangible Cultural Heritage