Joinder of preliminaryaction is a litigation system to solve the problem of combination of rights of claims, enhancing the litigation of efficiency, saving judicial resources.
预备合并之诉，正是为解决请求权竞合难题、提高诉讼效率、节约司法资源而构建的一种诉讼制度。
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Late last week, a federal judge in California gave preliminary approval to a settlement of the class action lawsuit regarding Facebook's Beacon program.
Preliminary evidence was obtained to prove the action of the position effect which has no relation to developmental phase on the grafts. A concept of positional information memory was proposed.