Reagent home and abroad, or made by users can be used, lower cost per use.

可使用国产试剂、进口试剂及用户自配试剂，试剂消耗量少，检测成本低。

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Sometimes control over modified versions is proposed as a means of preventing confusion between various versions made by users.

有时对修改版本的控制被用作避免不同版本的混乱的手段。

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Errors can also be introduced by inconsistencies between the changes that are made by users who are working on different parts of a model.

如果处理模型不同部分的用户所做的更改不一致，也可能会产生错误。

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Arcade cabinet purchases made by users in PlayStation Home can also be downloaded to the PlayStation Home Arcade at no additional cost.

ENGADGET: PlayStation Home Arcade brings parts of Sony's Second Life-esque world to PlayStation Vita

Facebook will enact a vote on changes to its governance when more than 7, 000 comments have been made by users on a topic.

BBC: Facebook offers control to users

We have had over 40, 000 bets made by active users.

FORBES: New Peer-To-Peer Sports Betting App Says "Screw The Bookie, Bet Your Friends"