Methionine: Sulfur-containing essential amino acid, present in many common proteins, particularly egg albumin.

The supplements are included to prevent essential amino acid deficiencies and avoid negative protein balance.

这样的补充包括预防必需氨基酸缺乏以及避免负氮平衡.

Should not rely on a separate starch-based food, because they lack-quality protein and essential amino acids.

不应单独依靠淀粉类为主食, 因为它们缺乏优质蛋白质和必需氨基酸.

Eating more foods containing essential amino acids, such as red meat, will also help.

多吃些含人体必需的氨基酸的食物如牛羊肉, 也会有益.

The essential amino acids are leucine, isoleucine, lysine, methionine, phenylalanine, threonine , tryptophan, and valine.

必需氨基酸包括亮氨酸 、 异亮氨酸 、 赖氨酸 、 蛋氨酸 、 苯丙氨酸 、 苏氨酸 、 色氨酸和缬氨酸.

Cordyceps sinensis contains cordycepin , polysaccharides, trace elements, varieties of essential amino acids and vitamins etc.

它含有虫草素 、 多糖 、 微量元素 、 人体必需的各种氨基酸和维生素等.

Valine is one of the essential amino acids.

缬氨酸是一种氨基酸.

Vegetable sources usually are low on or missing certain essential amino acids.

植物类食品中通常不含或者含有很少的必需氨基酸.

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

苯丙氨酸: 见于普通蛋白质 、 尤其是血红蛋白中的一种基本氨基酸.

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.