In French cooking, the flour and butter, which act as a thickening agent for the sauce, are alwayscooked slowly together for several minutes before any liquid is added.

法式烹饪中常用面粉和黄油作为酱汁的增稠剂，一般在加水，牛奶或高汤之前先将黄油和面粉混合并慢慢加热几分钟，做成油面糊。

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Concrete dissolve agent industry is a special for the concrete solution, design and manufacture of liquid concrete.

混凝土溶解剂是一种特别为混凝土产业所设计制造的液态混凝土溶解剂。

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The product as dark red liquid, no pollution, no corrosion, non-flammable, to the human body harmless environmental water-proofing agent.

该产品为暗红色液体，无污染、无腐蚀、不燃、对人身体无害的环保防水剂。

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The group infused a plastic-like polymer with microscopic capsules containing a liquid healing agent.

BBC: Time to heal: The materials that repair themselves

Some 300, 000 liquid doses of the antiviral agent Tamiflu for children were ordered by Health and Human Services Secretary Kathleen Sebelius and are to be delivered over the coming week, Schuchat said.

CNN: H1N1 vaccine on schedule, official says

To resolve this, researchers were focusing on developing a vascular system in which liquid could be circulated in a network of hollow fibers within the material, which would allow the healing agent to be restocked through an access point.

CNN: The emerging world of self-healing materials