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depleting的音標(biāo)：...

As part of a global programme , 89 ozone - depleting substances are under legislative control.此外, 又對89種消耗臭氧層的物質(zhì)實(shí)施法例管制,以配合全球的行動.A class I substance is any chemical with an ozone - depleting potential of 0.2 or greater.I類別...

v.使大大的減少，使空虛( deplete的現(xiàn)在分詞 )，耗盡，使枯竭...