depleting的音标：...

As part of a global programme , 89 ozone - depleting substances are under legislative control.此外, 又对89种消耗臭氧层的物质实施法例管制,以配合全球的行动.A class I substance is any chemical with an ozone - depleting potential of 0.2 or greater.I类别...

v.使大大的减少，使空虚( deplete的现在分词 )，耗尽，使枯竭...