The technique is still at the experimental stage. It hasn't been fully developed yet.
这项技术仍处于实验阶段, 尚未完全成熟.
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This technology has obtained the anticipated target in experimental stage.
该技术在试验阶段取得了预期目标.
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We're still at the experimental stage with the new product.
我们这项新产品仍处于试验阶段.
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The technique is still at the experimental stage.
这项技术正处于实验阶段.
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The drug is still at the experimental stage.
这种药还处在实验阶段.
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The technique is at the experimental stage.
这是我国发展的重要阶段.
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This product is still in experimental stage.
这项产品还处于初期阶段.
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We are still in an experimental stage.
我们还处于试验阶段.
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Unfortunately, up to now, alternative methods have proved too costly, or inefficient beyond the experimental stage.
不幸的是, 到目前为止, 已找到的替代方法或是过于昂贵, 或效率低的超出了试验阶段的预料.
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