The vision effect is obvious and is convenient for showing the product characteristic and the enterprise sign.

其视觉效果明显，便于突显产品特点、 企业标志等需要着重表现的内容。

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Characteristic based -for example offering the product for free for one user (so it is based on company size for instance).

基于特性——比如向某一个用户提供免费产品(例如公司规模的用户)。

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The essential characteristic of line (compared to batch), is that to produce another product or provide another service, the process does not have to be stopped and reset.

流水线的基本特征(与批量生产相比)是在生产或提供另一种产品或服务时，生产过程不必停下来再重新启动。

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Soil samples can be taken in which you can look for either residue of a chemical agent or the product's characteristic of when an agent degrades.

BBC: Syria chemical weapons claims: UK and US tread cautiously