Each piece of moss is cut into a foam frame, which prevents the moss from spreading or growing out of control.

每一块苔藓都被嵌入了泡沫框架中，以防止其过分生长或者四处散布。

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Problems in research and application process of coal mine foam dust control technique were analyzed.

分析了煤矿泡沫除尘技术研究及应用过程中存在的问题。

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This article introduced the application of expert predictive control technology in the EVA foam machine.

本文介绍了专家预测控制技术在EVA发泡机中的具体应用情况。

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Some engines also contain onboard foam systems, so there will be controls to control the flow of foam concentrate into the discharges.

FORBES: What Do All The Controls On A Fire Engine Truck Do?

Mr Mahdavi says his technique could control the size and positioning of the bubbles in such foam, and so determine the material's strength and rigidity.

ECONOMIST: MONITOR