注射器可以进一步包括柱塞禁用部件，在下压柱塞期间或之后所述柱塞禁用部件可操作地阻止、防止或以另外方式阻碍柱塞的回撤。
The syringe may further comprise a plunger disabling means operable to impede, prevent or otherwise hinder withdrawal of the plunger during or following depression of the plunger.
注射器可以进一步包括柱塞禁用部件，在下压柱塞期间或之后所述柱塞禁用部件可操作地阻止、防止或以另外方式阻碍柱塞的回撤。
The syringe may further comprise a plunger disabling means operable to impede, prevent or otherwise hinder withdrawal of the plunger during or following depression of the plunger.
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