Practice has proven that the bilateral relations have withstood the tests of time.
实践证明中塞黑关系是经得起时间考验的。
The practice has proven that China's measures of the CWC implementation are strong and effective.
实践证明，中方的履约措施是得力和有效的。
The production practice has proven that the design is reasonable, the operation is stable and the service life is longer.
经生产检验设计合理，操作稳定，合成炉使用寿命长。
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