Research new material and new technique, do test and trial to reduce the cost and improve quality.

研究开发新材料新技术，进行试验以减少消耗和提升质量。

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Test and trial operation results show that the hardware and software of this system has strong versatility and stability, and performance index conforms to design requirements.

测试和试运行结果表明：该系统的硬件和软件具有较强的通用性和稳定性，性能指标符合设计要求。

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She flagged the data as a 'test' before processing it, and the trial run went smoothly.

她在处理数据之前先给数据贴上了“测试”标签。测试进行得非常顺利。

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In fact, the genome resembles nothing so much as a hodgepodge of borrowed, copied, mutated, and discarded sequences and commands that has been cobbled together by millions of years of trial and error against the relentless test of survival.

FORBES: The Myth ... of the Myth of Junk DNA

She flagged the data as a "test" before processing it, and the trial run went smoothly.

WSJ: Better Ideas Through Failure

Sir Declan, sitting with Lord Justices Higgins and Girvan, held that the test applied by the trial judge required no knowledge of the attack until a rendezvous with the gunmen.

BBC: Northern Ireland