请求解答！
This security problem, known as instance level security, it's very hard to solve because within a web application there are thousands of similar request that need to be validated.
这种安全问题，被认为是实例级别的安全，它非常难以解决。 因为，在一个Web应用中，有成千上万条相似的请求需要被验证。
The locate request and fragment message types might not be as familiar to you unless you have needed to read through GIOP tracing to solve a problem
除非您曾经必须通读 GIOP 跟踪以解决某个问题，否则您可能不那么熟悉定位请求和片段消息类型。
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