必需的

Avian embryo normal growth and development depends on all necessary nutrient from Avian eggs .As Romanoff （1972） pointed out, nutrition is critical ,no matter how deficiency or over-dose of nutrient ,It both leads to all kinds of nutritional defect ,even mortal stress .

禽胚的正常生长与发育取决于蛋提供的所有必需的营养物，Romanoff等(1972)指出，营养为本，无论是缺乏还是过量均会使胚胎出现各种营养性缺陷甚至于致命的应激。

Strict or literal sabbatarianism contends that God's directive concerning the OT sabbath law is natural, universal, and moral; consequently the sabbath requires mankind to abstain from all labor except those tasks necessary for the welfare of society.

严格或直译sabbatarianism争辩说，上帝的指示，有关职能治疗安息日法是自然的事，是普遍的，而道德；因此安息日要求人类放弃一切劳动，除非这些任务所必需的福利社会。

Free election of a good man by the lawful electors, confirmation of the election and sacramental consecration by the archbishop--this is required, and is all that is required.

自由选举的一个好人的合法选民，确认选举和圣事的神圣大主教-这是必需的，而且是所有要求。

It is understandable to think sth as a matter of course,however ,it totally need to estimate sanely any situation

想当然的倾向是可以理解的，但是，理智地估计任何情形的情况是完全必需的。

Assumed tendency may be understandable,but,it's necessary to reckon any case sanely.

想当然的倾向是可以理解的，但是，理智地估计任何情形的情况是完全必需的。

Except for very heavy tools or large blank areas, thethickness required for screwhead counterbores ,in the range of 3/8" to 5/8"(9.5mm—16mm),will be sufficient.

除了非常重的工具或者大大空白的区域以外， thethickness 对于 screwhead counterbores 是必需的，多种的 3/8"到 5/8"，将会是充份的。

Two: You will experience a painful sharpening from time to time, by going through various problems in life, but you'll need it to become a stronger person.

第二，你将经历一次又一次痛苦的磨砺，解决生命中各种各样的问题，这是你成为一个更坚强的人所必需的。

The female silkworm moth also contained large amounts of unsaturated fatty acids, the largest among them was the linolenic acid belonging to the n-3 series, 40 times as much as that in eggs and 38 times as much as that in milk, while 6.5 times larger than linoleic acid.

家蚕雌蛾体含有丰富的不饱和脂肪酸，其中必需的n-3系列多不饱和脂肪酸亚麻酸含量最高(39.88%)，是鸡蛋的40倍和牛奶的38倍，并高于亚油酸含量6.5倍。

Full development of sexuality is essential for individual, interpersonal, and societal well being.

性的全面发展对於个人的、人与人之间的和社会的康乐是必需的。

The following manufacturers have met the necessary FDA requirements for marketing milk-based infant formulas in the United States: Abbott Nutritionals, Mead Johnson Nutritionals, Nestle USA, PBM Nutritionals, and Solus Products LLC.

以下的生产商符合FDA对在美国销售的婴儿奶制品的必需的要求，这些生产商分别是：Abbott 营养品， Mead Johnson营养品，美国雀巢， PBM营养品， and Solus产品 LLC。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐