Phenylalanine: One of the essential amino acids, present in many common proteins, especially hemoglobin.

A high weathercock frequency is essential for the stability of the guidance loop.

从制导回路的稳定性角度来看,短周期振荡频率高是基本的.

The possession of a passport is essential for foreign travel.

去国外旅行需持有护照.

Air, food and water are things essential for life.

空气, 食物和水是生命不可缺少的东西.

This was not only visually appealing, but essential for the vibrational effect.

这不仅在视觉上很迷人, 而且对振动效果十分必要.

It is essential for us to know all the facts.

对我们来说,了解所有的事实是必要的.

This is essential for our mutual benefit.

这对我们的共同利益是必要的.

Very favourable conditions are essential for the continuous and regular high production of orchard seed.

为了使种子圆种子获得持续正常的高产,必须有十分适宜的环境.

Some of the pesticides are also essential for protecting human and animal health.

有些农药对保护人类及动物的健康也是至为重要的.

Water is essential for plants.

水对于植物是必需的.

It's not essential for me to have four houses.

我没必要拥有四所房子.

Whatever method of heating was used, artificial respiration was essential for reanimation.

无论用任何暖和方法, 人工呼吸仍是救生所必需的.

The extracting rate of the essential oil was logarithmically increased with extracting pressure and time.

精油萃取率与萃取压力、萃取时间呈对数函数关系.

The Chinese ginger in Jamaica is the raw material for extracting the best ginger essential oil.

品质最好的姜精油原料是牙买加姜和中国姜.

Ingredients: pure olive essential oil, propolis, nano pearl powder, vitamin C, jojoba oil etc.

成份: 清纯橄榄精油 、 蜂胶 、 纳米珍珠粉 、 维生素C 、 霍霍巴油等天然活性精华.

Warning: Basil essential oil may irritate sensitive skin.

警告: 罗勒精油会刺激敏感皮肤.

Flower essential oil, quercetin and tannins, gallic acid, pigment, etc.

花含挥发油 、 槲皮素、鞣质 、 没食子酸 、 色素等.

California Baby's light & fresh Calming essential oil blend adds to the bathing experience.

加州(加利福尼亚)婴儿清新 镇静 香油配方增加了洗澡经验.

Dab an essential oil of jasmine, peppermint, or vanilla on your arm and sniff.

轻敷茉莉花精油, 薄荷, 香草在你的手臂,并不时的嗅一嗅.

Val watched the slow liquid filling his glass, the essential oil of the glazing the surface.

瓦尔看着酒液缓缓倒入他的酒杯, 陈酒的油花在杯中闪耀着.

Conclusion: Elsholtzia Cilita essential oil may be used in some concentration range is safe.

结论: 香薷精油在一定浓度范围内使用是安全的.