某斜腿刚构桥经过多年使用出现了一些病害后，需要进行加固。
A rigid frame bridge with inclined legs is strengthened due to some disease after several years' running.
显然每当一个经过多年使用后的标准进行重新修订时，就会出现常见的更新和澄清。
Obviously there will be the usual types of updates and clarifications that occur whenever a standard is revised after many years of use.
采用专业控制系统公司经典款控制系统，经过多年使用实践，性能稳定，符合军工级标准；
Adopts the classic control system from professional system integrate company, practiced for many years to ensure the stable performance in line with the military standard;
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