必需元素

Selenium is also essential for normal functioning of the immune system and thyroid gland.

硒元素同样也是免疫系统和甲状腺功能所必需的。

Thirteen elements of Canarium album Raeusch in Guangzhou and Cbaozhou were determined by ICP-AES. The elements which are necessary for people and related to the incidence and development of the viral hepatitis B were found. And the relation between the elements contents and the effect of Canarium album Raeusch was simply discussed.

用电感耦合等离子体发射光谱法，同时测定了广州与潮州产青果中13种微量元素和宏量元素的含量，结果发现其含有多种人体必需和与乙型肝炎的发生发展有关的微量元素；初步讨论了它们与青果功效的关系。

The cold mineral spring is rich in abundant macro-elements such as hydrogen, carbon, phosphor, oxygen and nitrogen, etc., and it abundantly contains 17 microelements such as ferrum, copper, zinc, nickel and silicons, etc. necessary to human body.

冷矿泉富含丰富的宏量元素氢，碳，磷，氧，氮等，富含丰富的铁，铜，锌，镍，硅等到17种人体必需的微量元素。

The cold mineral spring is rich in abundant macro-elements such as hydrogen, carbon, phosphor, oxygen and nitrogen, etc., and it abundantly contains 17 microelements such as ferrum, copper, zinc, nickel and silicons, etc.

冷矿泉富含丰富的宏量元素氢、碳、磷、氧、氮等，富含丰富的铁、铜、锌、镍、硅等到17种人体必需的微量元素。

The nutritional components of the whole dry pitaya flower were analyzed by ICP-MS,spectrophotometric method,chemical analysis method and gravimetric method.

采用ICP-MS、分光光度法、化学分析法和重量法对火龙果全花的营养成分进行了分析，结果表明，每100 g火龙果花干制品中水分、蛋白质、粗纤维、粗脂肪、总糖、灰分的含量分别为：7.12、11.80、10.01、1.15、23.61、7.43 g；火龙果花中钾的含量相当高，为13 772.07 mg/kg；镁、钙和磷元素的含量丰富，分别达到：1 788.34、1 745.44、307.90 mg/kg；铁、锰、锌等必需微量元素也较丰富。

By means of differential centrifugation,the studies on copper distributing character in subcell of Setcreasea purpurea Boom.showed that Cu content mainly distributed in cell wall and Cu content in chloroplast was a majority of whole leaf Cu content.

在不同浓度Cu供应时，紫鸭跖草对其必需养分元素的吸收和积累维持正常，它们的浓度均在保证一般植物正常生长的浓度范围内。100μmol·L~(-1)～250μmol·L~(-1) Cu的供应能明显促进植物生长。

Nutrient composition of Vallisneria natans was analyzed. Results show that V. natans contained 218.4 gkg^(-1) of protein, 51.4 gkg^(-1) of crude fat, 37.6 gkg^(-1) of polysaccharides, 265.7 gkg^(-1) of ash; and 147.6 gkg^(-1) of total amino acids, 55.0 gkg^(-1) of essential amino acid; and a number of mineral elements, such as 60.5 gkg^(-1) of K, 10.9 gkg^(-1) of Ca, 16.3 gkg^(-1) of Fe, 12.7 gkg^(-1) of Na.

沉水植物苦草的营养成分分析结果表明，其蛋白质含量为218.4gkg^(-1)，脂肪含量为51.4 gkg^(-1)，多糖含量为37.6 gkg^(-1)，灰分含量为265.7 gkg^(-1)；氨基酸总量为147.6 gkg^(-1)，必需氨基酸为55.0 gkg^(-1)；含有K、Ca、Cu、Fe、Zn、Mn、Na、Al、Ba等多种矿质元素，其中K、Ca、Fe、Na含量分别高达60.5、10.9、16.3、12.7gkg^(-1)。

From these core talents, some are optional such as: 2/2 Arctic Reach is for mobility; 3/3 Elemental Precision might not be necessary depending on your gear; 1/1 Ice Barrier is for survival; 1/3 Frostbite makes Blizzard proc Fingers of Frost.

在这些核心天赋里，一些是可选的：2/2奥术精妙3/3元素精准或许因为你的装备而不是必需的。1/1寒冰护体是为了生存。1/3寒冷刺骨使暴风雪触发寒冰指。

Iron is one of the necessary elements for cell growth, proliferation and functional activities.

铁是细胞生长增殖和机能活动所必需的元素之一。

Oxygen is not only a life-sustaining element to the existence of organism but also a key regulatory factor in cells physiological function.

氧气是机体生命活动所必需的重要元素，氧的供应不足会导致细胞的生长、分化和凋亡发生不同程度的异常改变。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。