be up in the air

The conclusion is that the relative influence of polluted absorbing liquid and absorbing bottle can be up to 47% when background concentration level of ammonia in local air is 0.100mg/m3.

得出结论是：在本地空气中氨的背景浓度水平为0.100mg/m3时，吸收液污染和吸收瓶污染相对影响最高达到47%。

互联网摘选

In the still air , smoke could be seen curling up from the chimney.

在无风的天气里, 可以看到烟从烟囱中缭绕升起.

《简明英汉词典》

The Duke of Cambridge announced in January he would be ending his career with the East Anglian Air Ambulance ( EAAA), and has clocked-up more than two years flying medical crews to emergencies from a base at Cambridge Airport.

剑桥公爵于一月宣布他将结束自己在东安格利亚空中急救队的工作，而且他已在剑桥机场一个基地的紧急飞行医疗队中工作了两年多。

互联网摘选

Galaxy sources tell me GM Lalas won't make a decision on Yallop's future until the end of this season, and Lalas'continued employment with the Galaxy might be up in the air, too.

银河内部有人告诉我说拉拉斯在赛季末之前不会对亚洛普的未来作出决定，而拉拉斯自己在银河的工作能否保住还要打个问号。

互联网摘选

Normally, between the polar vortex stays where it's supposed to be-in the North Pole, trapping frigid air up where it belongs.

通常，位于北极的极地漩涡限制住了寒冷空气。

互联网摘选

The sledge slid across the snow as lightly as a Boat on the water. When the wind Blew strongly it seemed that the sledge would Be lifted up in the air.

雪橇在雪原上轻巧地滑行，就象船在水上行驶一样。风刮得猛的时候，雪橇仿佛被刮上天似的。

互联网摘选

The Pakistan air force is buying up to 250 JF-17 fighter aircraft jointly produced by China and Pakistan in a deal that analysts believe could be worth about$ 5bn.

巴基斯坦空军还将购买多达250架中巴合作生产的JF-17战斗机。分析人士预计，此项交易的总价值约合50亿美元。

互联网摘选

Sums up the causes of three air lock faults in projects. Considers that the air lock should not be ignored as a common faults of water system, and should be paid attention to during design, construction and operation management.

对工程中遇到的三例水系统气塞故障加以总结，分析其原因，认为气塞是建筑水系统常见故障，应从设计、施工、运行管理三方面加以重视。

互联网摘选

If it is displayed on such occasions, do not allow the flag to fall to the ground, but let it be carried high up in the air to form a feature of the ceremony.

如果国旗被用在这种场合，则不能让它掉到地上而应悬在空中作为这个仪式的象征。

互联网摘选

Europe's plans for further unification may be up in the air, but people from Helsinki to Rome have been learning an often painful lesson in recent weeks about how entwined their economies have already become.

欧洲进一步统一的计划可以尚未定案，可是从赫尔辛基到罗马的人在最近几星期得到一个时常令人痛苦的教训：他们各国的经济已经如何地牵扯在一起了。

provided by jukuu

It will become way heavier than it was before and then it will even be bounced back up in the air and it goes again into free fall.

此时重量比平时大很多，然后它还会，弹起到空中，并再次做自由落体运动。

互联网摘选

Your emotional life may be up in the air if your mate has been going through a change of heart.

如果伴侣正在改变主意你的情感生活就会悬而不决。

互联网摘选