The serializer is not technically part of the XSLT processor, but it is essential for practical use.

从技术上看，串行化器并不是XSLT处理器的一部分，但它在实际使用中是必不可少的。

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Materials can already be made to do some of these things, but they are too bulky, rigid or complicated for practical use.

虽然一些材料已经可以实现这些想法，但是这些材料要么体积庞大、面料僵硬，要么在实际运用中过于麻烦。

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Utility Model "means any new technical solution relating to the shape, the structure, or their combination, of a product, which is fit for practical use."

“实用新型”是指对产品的形状、结构或组合所提出的具有实用性的新技术方案。

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Government officials have said that they aim to establish methane hydrate production technologies for practical use within five years.

BBC: Production test

The invention of an LED goes back to the 1920s but the first LED for practical use was invented by GE scientist Nick Holonyack in 1962.

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Compressing it sufficiently for practical range automotive use is also a big problem.

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