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图中所示为国产59式9mm手枪的击发、发射机构。您知道图中标号零件的名称吗?您能简单地说出该机构的工作原理吗?请立即写信给我们,我们将抽出幸运奖10名,奉送精美的礼品。
Shown in the picture is a homemade 59-type 9mm pistol firing, firing mechanism. Do you know the name of the part in the picture? Can you simply say how it works? Please write to us immediately, and we will pull out 10 lucky gifts for this wonderful gift.