He flashes back to his apartment, where he tests the chemicals. When they are combined, the chemicals react violently.
镜头闪回到他的公寓，他对化学品做试验，当这两种结合时，化学反应强烈。
When the chemicals react with nitrogen oxide--found in pollution from cars--they form ozone, a much bigger health threat to humans and animals.
然后，当这些化学物质与氮氧化合物(存在于汽车排放的废气中)发生化学反应时，就会形成臭氧，这会对人类和动物的健康构成更大的威胁。
The non-biodegradable industrial chemicals are attracted to the surface of the iron shavings, where they react by sharing electrons with the iron and become degraded.
非生物可降解的工业化学物质被吸附到铁粉的薄层上面来，与铁膜上的电子反应而降解。
Taste. The tongue contains small groups of sensory cells called taste buds that react to chemicals in foods. Taste buds react to sweet, sour, salty, and bitter.
舌头上有味蕾，它们是一小群能识别食物中化学成分的感官细胞，能识别出甜、酸、咸、苦。
Taste. The tongue contains small groups of sensory cells called taste buds that react to chemicals in foods.
舌头上有味蕾，它们是一小群能识别食物中化学成分的感官细胞，能识别出甜、酸、咸、苦。
Some insects, after their heads are severed, may live for as long as a year. They react automatically to light, temperature, humidity, chemicals, and other stimuli.
有些昆虫在头被切下后还能活一年，并会对光线、温度、湿度、化学品和其他刺激自动产生反应。
Residues of cigarette smoke deposited on indoor surfaces can turn carcinogenic when they react with airborne chemicals.
室内物品表面上烟草烟雾烟残留物当与室内空气中的化学成分发生反时应会形成致癌物。
PC board is not resistant to acid and alkali, and not with alkaline or corrosive substances stored in together, because of the PC board will react with the chemicals as plate surface corrosion.
而且PC板不耐酸碱，切勿与碱性或腐蚀性物质贮存在一起，因为PC板会与这些化学物质发生化学反应致使板材表面腐蚀。
It is the inhalation of these naturally occurring bonded chemicals that triggers out brain to react which then effects our emotions.
它是自然发生的保税吸入这些化学反应，从而引发出脑影响我们的情绪。
The problem with the ozone layer is that when certain chemicals, like chlorofluorocarbons, reach the stratosphere, they break down into chlorine and bromine, which react with the ozone and destroy it.
科学家们认为人类造成臭氧层破坏的主要原因是一些化学物质，像氯氟碳，当它们到达平流层后会分解成氯和溴，然后和臭氧发生化学反应从而破坏臭氧层。
The iron in hemoglobin causes the chemicals in luminol to react, meaning that their atoms rearrange to form new molecules.
血红蛋白里的铁元素会和发光氨里的化学发生反应。意思就是说它里面的原子会重组并形成新的分子。
When acacia trees are grazed by animals, they quickly react by producing chemicals called tannins, which make their leaves unappetizing and tough to digest.
当金合欢树被动物盯上时，它也会立即产生单宁酸，这让它们的叶子更难吃、难以消化。
Some animals that cannot see can still tell the difference between light and darkness, while others can react to chemicals, which is something like smelling and tasting.
一些没有视觉的动物，仍能辨别出光线和黑暗的不同，而其它一些动物能对化学物质做出反应，就如同有味觉和嗅觉一样。
Some animals that cannot see can still tell the difference between light and darkness, while others can react to chemicals, which is something like smelling and tasting.
一些没有视觉的动物，仍能辨别出光线和黑暗的不同，而其它一些动物能对化学物质做出反应，就如同有味觉和嗅觉一样。
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