He was unaware that I was present.

他不知道我在场。

None could witness that he was present.

没有人能证明他在场。

All competitors are presented with commemorative medals.

对参赛者均赠送纪念章。

I insist that you (should) be present.

请您务必到场。

Samples are presented free in the company.

本公司样品免费赠送。

A vivid picture is present to our eye.

一幅栩栩如生的画面出现在我们眼前。

The new ambassador was presented to the president.

新大使被引见给总统。

They covenanted that their hostages would be present.

他们保证他们的人质到场。

You are sincerely requested to be present at the party.

敬请您光临晚会。

Parents are humiliated if their children behave badly when guests are present.

子女在客人面前举止失当, 父母也失体面。

A parulis, or gum boil, may be present near the involved tooth.

在患病牙齿附近可见齿龈脓肿或齿龈疖。

Japanese food has been presented as expensive and reserved for special occasions.

有人提出日本食品比较昂贵，应留在特殊场合使用。

The theatre company is presenting 'Romeo and Julia' by Shakespeare next week.

剧团下星期将演出莎剧'罗密欧和朱丽叶'。

I earnestly wish I could have been present at the meeting yesterday.

我倒真愿意能参加昨天的会议。

The trials were a mere farce since no judges were present at all.

"这些审判简直是胡闹,因为根本没有法官出席。"

The Vehicle Jounce phenomenon at bridge head is discussed and solution is presented.

在继承原有的粉喷桩设计理论的基础上，根据新的设计思路提出新的设计方案。

The parametric modeling method for loxodrome normal circular-arc spiral bevel gear was presented.

给出了斜航式法向圆弧螺旋锥齿轮的参数化建模方法。

In the nucleoplasm chromosomes consisting of deoxyribonucleic acid (DNA) and proteins are present.

核质中的染色体由脱氧核糖核酸（DNA）和蛋白质构成。

Moreover, the characteristics and the main applied fields of polyacetal resin were presented.

并介绍了聚甲醛树脂的特性和主要应用领域。

For the future situation after stop line changed，the line-clothoid-clothoid-line model is presented.

对于停车线位置改变后的未来状态，给出了直线—回旋线—回旋线—直线组合的左转车辆行驶轨迹模型。