proper mixing

Road-paving asphalt meeting the required specifications can be prepared by mixing coal tar with fluid catalytic cracker ( FCC) bottoms and whole used tire, excluding steel belts, at proper ratios.

把煤焦油、流化催化裂化（FCC）重油和全旧轮胎（除去钢带）按合适的比例混合，就可得到符合规格要求的铺路沥青。

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There should be proper condition of air circulation in mixing room and in construction site.

配料及施工现场地应有适当的通风条件,施工期间应打开门窗通风,下班时应及时关闭.

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His proper pride ought to have kept him from mixing with such matters.

他的自尊心本应不让他和这样些事情搅在一起.

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The relative prevention measures mainly included proper mixing of pit mud, adequate regulation of liquor-making techniques and strengthening pits management etc. ( Tran. by YUE Yang)

防治措施主要有合理和制窖泥，调节酿酒工艺和加强窖池管理等。

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Therefore, it is only and proper to consider transplant the application of cement-soil mixing in a dike to a earth dam, to form some kind of impervious curtain, in order to reduce the seepage volume, and bring down the water gradient on the downstream exit.

因此，考虑将水泥土的应用从堤防移植到土石坝上来，形成水泥土防渗墙，以达到减少渗流量，降低渗透坡降的效果。

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