至少每隔两小时要补一次防晒，因为保护物质会慢慢分解。
It should then be re applied at least every two hours, as the protective filters can break down over time.
还探讨了甘薯膜脂过氧化及非酶促保护物质与甘薯品种耐旱特性的关系。
The relationship between membrane lipid peroxidation, non-enzymatic protection system and drought tolerance of sweet potato varieties was discussed.
目的：探讨穴位电刺激预处理对大鼠心肌超微结构和内源性保护物质活力水平的影响。
Objective To probe the effects of preconditioning via acupoint electricity stimulation on rats' myocardial ultrastructure and endogenous protective substances level.
多胺不仅调节植物的生长发育，还参与逆境响应，而脯氨酸则是一种重要的渗透保护物质。
Polyamines not only regulate plant growth and development, but also are involved in the responses to various stresses, while proline is an important osmotic protective substance.
这些结果表明CGRP可能是一种内源性心肌保护物质，并在预适应的保护效应中起重要作用。
These findings suggest that CGRP may be an endogenous myocardial protective substance and plays an important role in the mediation of preconditioning.
目的探讨新生儿坏死性小肠结肠炎（NEC）发病机理，为寻找其内源性保护物质提供实验室依据。
Objective To investigate the pathogenesis of neonatal necrotizing enterocolitis (NEC), to explore the laboratory basis for endogenous protective substance.
当再次接触到这种病原菌时，人体的免疫系统便会依循其原有的记忆，制造更多的保护物质来阻止病原菌的伤害。
When exposure to this pathogen, the immune system will follow the original memory, making more protective substances to prevent pathogen damage.
这意味着未成年人享有物质利益和法律保护，这是会让那些生活在过去的人感到羡慕的。
This means minors enjoy material benefits and legal protections that would have been the envy of those living in the past.
这听起来很矛盾，因为这一假设背后的理念是，树叶在秋天产生的红色素是用于保护叶绿素这种吸收光的化学物质，以免它吸收过多的光。
It sounds paradoxical, because the idea behind this hypothesis is that the red pigment is made in autumn leaves to protect chlorophyll, the light-absorbing chemical, from too much light.
联合国教科文组织的非物质遗产名录旨在保护文化免受世界的影响。
UNESCO's intangible heritage list aims to protect culture from the influence of the world.
为了保护这种技艺，蜀绣于2006年被列入了中国非物质文化遗产名录
To protect this skill, Shu embroidery was added to China's intangible cultural heritage list in 2006.
我们的免疫系统是要保护身体免受寄生虫、细菌和其它外来物质的侵犯。
Our immune system is meant to protect the body from invading parasites, bacteria and other foreign substances.
胎儿皮脂——白色的干酪质的物质——已经在婴儿表面形成了，它可以保护婴儿免受水环境的影响并帮助婴儿舒适地通过产道。
Vernix caseosa a white cheesy substance has formed over the baby’s skin to protect it from its watery environment and to help ease her through the birth canal.
一种属于21世纪的神奇物质能够保护你的房屋远离爆炸冲击波，能够清除油料泄露，甚至能帮助人类飞向火星。
A MIRACLE material for the 21st century could protect your home against bomb blasts, mop up oil spillages and even help man to fly to Mars.
这些“非正规”工业几乎不采取预防措施保护工人，防止垃圾中如铅和汞之类的有害物质。
Many of these "informal" industries take few precautions to protect workers from hazardous materials like lead and mercury in the waste.
纤毛通过清扫有毒物质，如细菌、病毒等从而保护肺。
These hairs protect the lungs by sweeping out toxins, bacteria, and viruses.
在一个试验中，他们发现黑咖啡粉含有更多的抗氧化剂和多酚，这些物质被认为能够保护身体远离癌症和心脏疾病的困扰。
In a test, they found that powdered dark chocolate contained more antioxidants and polyphenols - all of which are thought to protect the body from diseases such as cancer, and heart conditions.
看起来，泥土似乎提供不了太多营养物质——但它也许能保护人体，免受毒素、病菌，寄生虫的伤害。
Seems that dirt doesn't offer much in the way of nutrition-but it may protect against toxins, pathogens and parasites.
这主要是因为它是一种大分子物质，要穿过保护大脑免受血液中可能有害化合物入侵的血脑屏障很困难。
This is mainly because it is a large molecule, and has difficulty passing through the blood-brain barrier which protects the brain from potentially harmful compounds in the blood.
研究人员目前还在老鼠身上试验那些对鱼类毛细胞有保护作用的化学物质。
Those chemicals found to confer protection on fish hair cells are currently also being tested on mice and rats.
树木分泌的天然化学物质异戊二烯和萜烯被认为可保护树叶免受过多热量和阳光的伤害。
Trees produce natural chemicals, called isoprene and terpene, that are thought to protect their leaves from too much heat and sunlight.
黑巧克力：其含有黄烷类物质，能保护眼部血管。
Dark Chocolate: It contains flavanoids which protect blood vessels of the eyes.
此外，研究人员指出，咖啡和茶中含有的抗氧化物质能够保护肾脏细胞免受伤害。
Coffee and tea also contain antioxidant compounds that may help protect cells in the kidney from cancer-promoting damage, the researchers point out.
科学家们假设这种物质的黏着特性保护过敏原免于被降解。
The researchers hypothesised that the gelling properties of pectin were, in some way, protecting the allergens from degradation.
涂层是用来涂在物体外部保护物体的化学物质。
Coating refers to a chemical that is applied to the outside of something to protect it.
植物酚类物质(黄烷类)能保护植物免受昆虫、细菌和真菌感染和光氧化的伤害。
Plant phenolics (flavanoids) protect the plant against insects, bacterial and fungal infection and photo-oxidation.
研究人员已经开始做绿茶用在癌症预防上的研究，他们怀疑这个饮品的抗氧化物质可能能够保护身体抵抗这个致死疾病的攻击。
Researchers have studied green tea in cancer prevention because they suspect that the drink's antioxidants may protect against the deadly disease.
研究人员已经开始做绿茶用在癌症预防上的研究，他们怀疑这个饮品的抗氧化物质可能能够保护身体抵抗这个致死疾病的攻击。
Researchers have studied green tea in cancer prevention because they suspect that the drink's antioxidants may protect against the deadly disease.
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