不是必要的

Within the scope of correct war planning, encouraging the spirit and practice of heroic self-sacrifice and dauntless advance in battle is absolutely necessary and inseparable from the waging of protracted war and the achievement of final victory.

在战争中提倡勇敢牺牲英勇向前的精神和动作，是在正确的作战计划下绝对必要的东西，是同持久战和最后胜利不能分离的。

Keeping your blood glucose under control is extremely important for your health, and that would not be possible without being able to track your blood sugar levels regularly and making the necessary adjustments to stay on track.

使您的血糖控制是极为重要的为您的健康，而且将是不可能的，却无法跟踪您的血糖水平，并定期进行必要的调整，以保持在磁道上。

Airbags are widely available nowadays since they have been proved effective in decreasing the mortality and morbidity during frontal-collision car accidents. However, more and more occupants have been injured by airbags, even in low-speed collisions, according to many case series. These injuries happened more frequently among women and short-statured persons.

汽车安全气囊已被证实可以有效的减少因正面碰撞车祸所造成的重大伤亡，但它也会连带造成一些不必要的伤害，尤其是发生在原本应不致造成重大伤害的中低速碰撞，而其中最常伤及眼部，但是大多数是轻微而且可以痊愈的。

But what I like about him was that he never put on the dog to show off his money.

但是我最欣赏他的是他从来不把钱花在不必要的地方。

A sentence may or may not have an auxiliary verb.

对于一个完整的句子来说，助动词是不必要的，可能有，也可能没有。

When the IAU's value for k is used to calculate these times, they must be corrected to accommodate low valleys or high mountains along the Moon's limb. The calculation of these corrections is not trivial, but is necessary, especially if one plans to observe near the path limits (Herald 1983). For observers near the central line of a total eclipse, the limb corrections can be more closely approximated by using a smaller value of k, which accounts for the valleys along the profile.

当IAU的K值被用来计算这些时刻，他们必须纠正并使其符合月球边缘的低谷和高山，这种修正并不是不重要的，相反是很必要的，特别是计划观察靠近极限路径时（Herald 1983），对于靠近全食中心线的观测者来说，在使用更小K值的情况下，边缘修正会被更准确地近似，这个K值代表山谷沿着轮廓。

No, a specific volume of sample is needed for the test to be accurate.

不。特定量的取样对测试精确是非常必要的。

There is some unnecessary repetition, and many paragraphs spend more time than they should on digressions that seem to have occurred to the author in mid-thought.

或者是口述？有几处不必要的重复；有许多段落枝节芜杂，作者似还处于思考的半途。

There is some unnecessary repetition, andmany paragraphs spend more time than they should on digressions that seem tohave occurred to the author in mid-thought.

或者是口述？有几处不必要的重复；有许多段落枝节芜杂，作者似还处于思考的半途。

The breed requires moderation both in structure and presentation, and any exaggerations are to be shunned.

这一品种要求身体结构和外表都适中，任何的夸张都是不必要的。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。