实用性的

I was persuaded of the usefulness of his new device.

我相信了他新装置实用。

Piano improvisatory accompaniment is not only a subject including composition and performance but also a practical performing art.

钢琴即兴伴奏既是一门融创作与演奏为一体综合学科,同时又是一门实用表演艺术。

An il-lustration of this way in a actual quilting motion control system indicates that this method has applied value.

通过在绗系统中应用,验证该实用。

It was recommended that the HPLC and nonaqueoustitration can be used for the detection of sodium gluconate in practical production.

其中HPLC法和非水滴定法较方便且有较好实用,可以用于葡萄糖酸钠工业生产中。