You must compile them all, but your client application need only know about the SEI.
您必须将这些类一起编译，但是您的客户机应用程序只需要知道SEI。
Norms is all ready, quality assures, can ask to be spun only by the client.
规格齐全，质量保证，可按客户要求专纺。
Norms is all ready, quality assures, can ask to be spun only by the client.
规格齐全，质量保证，可按客户要求专纺。
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