五千年(敝帚自珍)

主题:河里已经开了党争的头 -- 葡萄

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家园 How is the grade?

Don't bother if that's your secret. The grade for my project is averaging from 8% to 13%. But fine ratio is too high. You don't have this type of problem in SAGD, do you?

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有趣有益,互惠互利;开阔视野,博采众长。
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