The needle must penetrate the skin and the vein in the same place.
针头必须在同一处同时穿透皮肤和静脉。
One challenge is that laser light cannot penetrate the skin very deeply.
其中一个挑战是激光无法深入人的皮肤。
It will form a very fine protective layer over the red scar and does not penetrate the skin.
它会在红红的疤痕上形成一个良好的保护层并且不会渗透到皮肤。
If it did penetrate the skin and get into the blood, it would have to be classed as a medicine.
如果真能渗透皮肤、进入血液，就应归为药物了。
Tritium emits a weak form of radiation that does not travel very far in the air and cannot penetrate the skin.
氚发出的辐射很弱，在空气传播不远，不能穿透皮肤。
Gold is not commonly used for skin treatments because it is very difficult to dissolve and penetrate the skin.
黄金不常用在皮肤的疗程中因为它非常难溶解并渗透于我们的皮肤。
Larval forms of the parasites, which are released by freshwater snails, penetrate the skin of people in the water.
在水中，淡水螺中释放出的尾蚴侵入人体皮肤，造成感染。
Neither one of these seems to penetrate the skin, and sunscreens based on these ingredients appear to be safe as well as effective.
这两种物质都不会穿透皮肤，基于这两种成分的防晒霜效果好，还安全。
The worms leave the snails and enter the water, where they can penetrate the skin of humans who are wading, swimming, bathing or washing.
这些虫分开蜗牛进入水中，进而进入涉水、泅水、洗澡和洗衣服的人皮肤的里。
They have successfully inoculated mice against flu using scores of tiny needles that might be referred to as “hyperdermic”, because they do not fully penetrate the skin.
他们成功地用大量的小针头为老鼠做抗流感的预防注射——可以认为是“皮内注射”，因为他们没有完全穿透皮肤。
The variation from pink to brown not only helps to prevent sunburn but also allows appropriate amounts of sunlight to penetrate the skin to create the vitamin D3 from its inactive precursors.
从粉色到棕色的变化不仅帮助防止了晒伤，而且还让合适数量的阳光穿透皮肤从而把未激活的前体变成维生素d3。
This wavelength of light can penetrate several centimetres into the skin.
这种光波可以穿透皮肤几厘米深。
Scientists at the University of California at Riverside have found that molecules(6) that block UV radiation in sunscreen can, over time, penetrate(7) into the skin, leaving the outer body vulnerable.
加州大学河滨分校的科学家已经发现防晒霜中能阻挡紫外线辐射的分子时间一长就会渗透到皮肤里，使体表更容易受紫外线攻击。
The sun can reach you on cloudy, rainy, or snowy days as well. Plus, Sadick adds, "skin-damaging UV rays can penetrate through glass, so you need to apply sun protection even indoors."
别天真地以为宅在家里就不用防晒了：不论阴天雨天还是雪天，阳光都会让你无处可逃，其中有害的UV射线甚至可以穿透玻璃抵达室内。
UVA rays can penetrate deeply into your skin and suppress your immune system. This increases the risk of wrinkling and age spots.
UVA能穿透你的皮肤，使免疫系统的功能下降，这就增加了长皱纹和老年斑的危险。
Thousands of microscopic holes in the mesh fabric allow 80 per cent of sunlight to penetrate through to the skin.
泳衣的网状布料上有数千个微孔，可以使80%的阳光穿透泳衣直射皮肤。
Male protection: massage by massage oil penetrate your anal skin, and do further into the gland massage, then played on the reproductive function of health care.
男性保护：按摩师用按摩手法让油渗入你的肛部肌肤，并做深化到腺体的按摩，然后起到对生殖功用的保健结果。
Specification: A non-stimulating formula lets it penetrate into the deeper layers of your skin, making it soft and supple.
说明：无刺激配方，温和渗透进皮肤深层，令肌肤柔滑有弹性。
The result is a large number of nodules and cysts that deeply penetrate the surface of the skin.
其结果是大量的结节和囊肿深受穿透表面的皮肤。
Function description: Penetrate deep into cells, supplement nutrition and water, quickly improve flaw and slough, moisturize lips, restore damaged skin in the daytime, leave lips roseate and moist.
功能说明：深层渗入细胞补充营养和水分，迅速改善干裂、脱皮现象，润泽唇部，修复日间受损肌肤，令唇部红润娇嫩。
Function description: Rare gingko and green tea extract quickly penetrate into the deepest skin layer, lock in water and moisturize persistently, bring skin water feeling.
功能说明：珍贵银杏、绿茶萃取精华能迅速渗至皮肤基底层，持续锁水滋润，给肌肤带来水漾感觉。
Its pearl active ingredients can penetrate skin and fill new energy to cells, so as to regenerate the damaged skin and nourish white skin.
蕴含珍珠活性成分，能渗透肌肤底层为细胞注入新能量，修护受损肌肤，赋予肌肤美白滋养，宛若新生。
The hand coverings force the oil to penetrate your skin, preventing your hands and nails from getting too dry.
手上的覆盖物会促进油渗入肌肤，使你的双手和指甲不会太干。
It ACTS to penetrate deeply, while strengthening the defense qualities of the skin barrier, thus resulting in extraordinary softness and brightness to the skin.
它能渗入皮肤深层，同时加强皮肤屏障的防御功能，令皮肤特别柔嫩细致及充满光泽。
Health whitening: Add natural milk into the olive nectar essence extracted from olive would effectively penetrate to the deep layer of the skin, realizing your dream of whitening the skin.
健康美白：从橄榄中萃取的橄榄花蜜精华，融入天然牛奶，能有效渗透到肌肤深层，帮你实现美白梦想。
Just 650 microns in length and assembled into an array of 100 needles for the mouse study, the dissolving microneedles penetrate the outer layers of skin.
在小鼠实验中，帖片长度只有650微米，上面排列了100个针头；可降解的微针头穿透皮肤的外层。
This unique skin creme, designed for all over body use, combines Australian Lanolin, Glycerin and natural oils to give you a rich, non-greasy creme that will penetrate even the driest of skin.
这款独特的绵羊油，含有澳洲天然羊毛脂，甘油和天然精油，带给你一个高浓缩成份清爽无油的面霜，它会渗入到皮肤最干燥的地方。
Results from our model revealed that oxygen uptake by diffusion from the air, under normal conditions, was limited to the out most layer of the skin and did not penetrate beyond the germinal layer.
研究结果表明，在正常生理条件下，皮肤从空气中通过扩散输运所获取的氧仅限于表皮角化层，而不能到达表皮生发层。
It can quickly penetrate into the deep layer of skin to deeply clean the skin, and radically improve the dark and yellow skin and balance the complexion.
能迅速渗入肌肤深层清洁肌肤，从根本上改善肌肤晦暗、偏黄、肤色不均现象。
It can quickly penetrate into the deep layer of skin to deeply clean the skin, and radically improve the dark and yellow skin and balance the complexion.
能迅速渗入肌肤深层清洁肌肤，从根本上改善肌肤晦暗、偏黄、肤色不均现象。
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