Personal protective equipment against falls from a height - Retractable type fall arresters.
防止从高处跌落的个人防护设备。收放式防跌落装置。
The right height of the bench and its distance from the piano is also a matter of personal taste.
座椅的高度以及与琴的距离也是因人而异。
The right height of the bench and its distance from the piano is also a matter of personal taste.
座椅的高度以及与琴的距离也是因人而异。
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