This break in Earth's history is marked by a mass extinction, when as many as half the species on the planet became extinct.
地球历史上的这次重大灾难以物种的大量消亡为标志；当时，地球上多达一半的物种都灭绝了。
One time I saw a young man rushing around, his mind obviously occupied by a mass of projects and ideas.
有一次我看到一位年轻人忙得团团转，显然心中有一大堆计划和点子。
The vote on September 24th, a by-election for 18 seats in the 40-seat parliament vacated by a mass resignation of opposition MPs, was widely boycotted.
于9月24日举行的、由反对派议员集体辞职而空缺的18个席位（议会共40席位）的递补选举遭到了大范围的联合抵制。
The dynamic response of a free free beam with uniform rectangular cross section subjected to impact by a mass at both free end is analyzed theoretically.
对矩形截面自由梁在两端同时受到完全相同的集中质量横向撞击问题进行了理论上的研究 ，通过采用刚塑性的材料模型得到了其动力响应完全解。
Straddling the late Ordovician period and the early Silurian period, the Andean-Saharan ice age was marked by a mass extinction, the second most severe in Earth's history.
Andean - Saharan冰河期横跨了Ordovician冰河期的后期和Silurian冰河期的前期，大灭绝成为了其标志性事件，那是地球历史上第二个气候最恶劣的时期。
Fortunately, a group of astrophysicists has proposed a means of detecting cosmic neutrinos by harnessing the mass of the ocean.
幸运的是，一些天体物理学家提出了一种通过控制海洋质量来探测宇宙中微子的方法。
He is doing 100 miles an hour down the Mass Pike and gets pulled over by a state trooper.
他在马萨公路上以每小时100英里的速度行驶，结果被一名州警拦下。
I can measure that, because I pull it by one centimeter and I find the acceleration it exerts on a known mass.
我可以测量它了，因为我把它拉到了一厘米，我发现它对一个已知质量施加的加速度。
In fact, subsequent work has shown that in a periodic table, elements should not be ordered strictly by atomic mass.
事实上，后来的研究已经证明，在元素周期表中，元素不应该严格按照原子质量来排序。
The signaling in a plant is only superficially similar to the firing in a complex animal brain, which is more than "a mass of cells that communicate by electricity," Taiz said.
植物内部发出的电信号与动物复杂的大脑中发出的神经信号只是表面上相似，动物大脑不仅仅是“通过电信号交流的细胞群”，塔伊兹说道。
Such a view is a superficial analysis based on the quantity of information supplied by various forms of the mass media.
这种观点只是一种基于各种大众传媒所提供的信息量的表面的分析。
But such a view is a superficial analysis based on the quantity of information supplied by various forms of the mass media.
但这种观点是基于各种形式的大众传媒所提供的信息量的一种肤浅的分析。
There is, as Robert Rubin, the treasury secretary, says, a "disjunction" between the mass of business anecdote that points to a leap in productivity and the picture reflected by the statistics.
正如美国财长罗伯特·鲁宾所言，在指向生产率飞跃的大量商业轶事与统计数据所反映的情况之间存在着“脱节”。
Following each mass extinction, there is a sudden evolutionary burst as new species develop to fill the ecological niches opened by the event.
在每一次物种大灭绝后，都有一次突然的进化爆发，因为会有新物种出现来填补灭绝创造的生态位。
It's wise to find a place to travel that has a lot to present but hasn't yet been hit by high price of admission as well as mass popularity.
找一个有很多东西可以欣赏、票价不高、没有很多人去的地方旅游是明智的做法。
Yet this palaeontological paradise holds a dark secret: the mass deaths were not caused by a single event.
然而，这片古生物乐土却隐藏了一个秘密：如此大量的死亡并不是一次事件导致的。
Individual fingers are replaced by a single mass of granular material that, when pressed onto a target object, flows around it and conforms to its shape.
用大量微小的颗粒状材料取代了手指，当它要抓住一个东西的时候，颗粒材料就被吹起来以符合物件的形状。
Fusion in a star's core produces heat and outward pressure, but this pressure is kept in balance by the inward push of gravity generated by a star's mass.
恒星核心中发生的核聚变产生热能与向外的压力，不过这份压力由恒星质量所产生的内向重力抵消了。
A melt up is a rapid and mass rush by investors into an asset class after a belated realization by market players that worthwhile gains are to be had there.
一种融涨是急速和大量匆忙的，是由于已经获得有价值收益的市场参与者，后之后觉，进入一种资产类别。
Physicists have to look for it by systematically searching a range of mass within which it is predicted to exist.
物理学家必需从一段希格斯玻色子预计存在的质量区间去系统地搜索。
Doctors often assess a patient's risk of coronary artery disease by looking at their body mass index - a measure that takes into account someone's weight and height.
医生通常会评估身体质量以测量病人罹患换冠心病的风险，这样的一种测量方法需要参考病人的体重和身高。
The two events should give pause for thought, for the new urge to urbanise has been matched not just by global warming but by another mass movement: a dash for the coast.
这两件事应该使我们重新思考，因为，全球变暖和对海岸的大规模破坏已经足以影响到人们城市化建设的冲动。
Then I have the total mass of A divided by the number of moles of A.
然后是A的总质量,除以A的摩尔数。
We move products around by direct shipping, which is a sort of mass-transportation for goods.
我们通过直接运输方式移动产品，这是一种大规模货物运输方式。
In modern media organisations news is gathered by specialists and disseminated to a mass audience along with advertising, which helps to pay for the whole operation.
在现代媒体组织中，新闻由专业人员收集，与广告一起传播给广大受众。广告帮助支付全部的营业费用。
Start off by sending a mass email to your friends and family.
首先给你的朋友和家人发送大量的电子邮件。
Yet a spate of mass killings and injuries by knife or hammer-wielding assailants has continued.
然而由尖刀和锤子引发的大量死伤却没有因此而停止。
The fibres were replaced at regular intervals over the course of seven days and taken away for analysis by a device called a gas chromatograph-mass spectrometer.
在七天的实验里，每隔一定时间就要更换一次纤维，然后用一种叫做气相色谱质谱联用仪的装置提取以供分析。
In short, after centuries of oppression and exploitation, the slave masters were supposed to be further rewarded by a handsome sum mulcted by force from the mass of innocent taxpayers!
总之，经过了数世纪的压迫和剥削，奴隶主们似乎值得进一步的奖励，似乎可以强行从普通无辜纳税人那里没收钱来奖励奴隶主！
In short, after centuries of oppression and exploitation, the slave masters were supposed to be further rewarded by a handsome sum mulcted by force from the mass of innocent taxpayers!
总之，经过了数世纪的压迫和剥削，奴隶主们似乎值得进一步的奖励，似乎可以强行从普通无辜纳税人那里没收钱来奖励奴隶主！
应用推荐