请总结以下文本，需要重点关注海域名称、 problema �odesk和解决措施，并将总结内容限制在50字以内。文本如下：Documents say vessels operating in the South China Sea faced problems like machinery breakdowns, power supply failures, pollution and pirate threats, but most issues were solved through international cooperation.
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南中国海船只遇机械故障、电力供应故障、污染及海盗威胁等问题，多通过国际合作解决。
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