久经考验的

long-tested

久的英语翻译：

for a long time; of a specified duration

经的英语翻译：

after; by; classics; scripture; constant; endure; manage; deal in
pass through; regular
【医】 per-; trans-

考验的英语翻译：

proof; test; trial; tribulation; try
【法】 test; visitation of providence