单词descender
n.: 下降物；绕绳下降金属套
网络: 下降器；降部；下降者
绕绳下降金属套
下降物
复数：descenders
PERSONAL PROTECTIVE EQUIPMENT AGAINST FALLS FROM A HEIGHT. DESCENDER DEVICES. (EUROPEAN STANDARD EN 341).
防高处坠落个人防护设备.降落装置.（欧洲标准EN341）
The outer surface 460 can be protected with tape while the ozone is supplied to the descender and the inner surface 450.
可以通过带保护外表面460，当将臭氧施加于该下降部和内表面450时。
For example, if the longest descender extends 2 points below the baseline, this method returns -2. 0 .
举个例子。如果最长的那个下沉字元在基线下2磅，那麽这个方法返回-2。
Personal protective equipment against falls from a height - Descender devices
预防高空降落物的个人用保护设备.降落装置
Self rescue kit including an INDY descender, 20m rope, anchorage sling and storage bag
自救套件，包括INDY手控下降器，20米安全绳，悬挂吊带和储存包