1.The roof was repaired by Charles with sealant and cement.

查尔斯封胶和水泥修补了屋顶。

2.That will create a film of water that then if you put a sealant over it, that will trap the moisture from evaporating.

这会形成一层水膜，然后如果你在上面涂上封胶，就会将防止水分蒸发。

3.Polyurethane foam sealant was used during construction at the first floor underground, releasing flammable gases that accumulated to reach combustible conditions.

下一层施工业中聚氨酯泡沫填缝剂时，释放易燃气体局部积聚达到可燃条件。

4.It's used in all kinds of products, including adhesives, fibre optics, sealants, cling film, paper, fuel, explosives, sporting equipment, roofing, bottle stoppers, and tires.

它在各种产品中都被包括粘合剂、光纤、封剂食品薄膜、纸张、燃料、炸药运动器械、屋顶、瓶塞以及轮胎等。

5.But all of that is when acrylamide is used as a sealant, not when it's a byproduct of toasting your bread for too long.

但所有这些情况都是丙烯酰胺封剂的结果，不是烤焦面包上的副产物。

6.These chemicals-widely used in the middle decades of the 20th century to manufacture electrical insulation, coolants, sealants and plasticisers-often ended up dumped in lakes, rivers and coastal waters.

在20世纪中的几十年中，这些化学物质广泛应于制造电气绝缘物，冷却剂，封剂和增塑剂，它的废物排污于湖泊，河流和海水中。

7.But if you're not properly moisturizing the area first, it's just kind of gonna operate as a sealant and not really work to actually moisturize your lips.

但如果未先充分滋润该区域，润唇膏就只能起到封， 而无法真正为双唇补充水分。机翻

8.Shampoos also get fancy with their polymers—some add volume or weight or increase the shine and feel, while others protect from things like UV rays—but, in essence, they all work like waterproofing sealant on a deck.

洗发水的聚合物也很花哨——有些可以增加体积或重量或者改善光泽和触感，而有些则可以防止紫外线——但本质上，它们都像甲板上的那层防水封胶。