The chromatography technique is one of the most effective methods for biomolecule purification, which can provide high separation resolution.

层析技术是生物大分子分离纯化最有效的手段之一，可以实现很高的分离度。

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To improve wear resistance and contact fatigue strength of high loaded mechanical parts, one of best effective methods is to improve surface hardness.

要提高承受高应力工件的使用寿命，提高其硬度是有效的方法之一。

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Microwave volume packaging technologies are effective methods for realizing microwave modules miniaturization and weight reduction with high density and good performance.

微波立体组装工艺是实现微波组件小型化、轻量化、高组装密度和优良电气性能的有效途径。

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Mtayari, a junior at Southwest DeKalb High School, said he believes the old protest methods of marches and sit-ins can be effective weapons on new battlefields.

CNN: Voices of change