等离子的浓度下降一半，约2小时。
Plasma concentration decline with a half-life of about 2 hours.
胡志明市受到的冲击最大，租金下降一半以上。
Ho Chi Minh City was the worst hit, with a rent decline of more than half.
碘131有八天的半衰期，这意味着每八天其能量就下降一半。
Iodine 131 has a half-life of eight days, meaning that every eight days it loses half its strength.
伦敦证券交易所主板上的企业数量在过去几十年中已下降一半。
The number of companies on London's main market has fallen by half over the past decade.
尽管在过去十年左右的时间里，募集和使用了数以百万美金，野生老虎的数量仍下降一半。
Despite millions raised and spent in the last decade or so, wild tigers may have declined by half over that time.
烧伤后5小时，平均动脉压下降一半左右，开始给动物用平衡克氏液腹腔透析。
When the average arterial blood pressure had lowered to near half of original level after 5 hr of burn, the animals were given abdominal dialysis with balance Krebs solution.
临换极和新极相比，电阻约下降一半，在电流相等的条件下，阳极压降下降一半。
Becoming changed anode was contrasted with new one, anodic resistance fell around by half, if electric current was equal, anodic voltage-drop fell by half.
据摩根大通，2009年第一季度一个月的违约就有15件，但是五、六月份的违约率将下降一半。
According to JPMorgan, there were 15 defaults a month in the first four months of 2009, but the rate fell by half in May and June.
在华盛顿州西部这样的地方，只要横斑猫头鹰一出现，这些地方的斑点猫头鹰的数量就会下降一半。
In places like western Washington, the spotted owl population has been cut in half since the barred owl showed up.
在各位的帮助下，我们正在作出努力，使15个非洲国家与疟疾相关的死亡人数下降一半。
With your help, we are working to cut by half the number of malaria-related deaths in 15 African nations.
如果索马里妇女能够少生一半的孩子(现在平均6个)，那么妇女的死亡比率就会下降一半。
If Somali women had half as many pregnancies (they now average six births), there would be only half as many maternal deaths.
通用的股票相比去年的价值已经下降一半还多，主要原因是通用金融服务部门美国通用金融的表现不如人意。
Ge's shares lost more than half their value last year, largely because of the poor performance of its financial services arm, ge Capital.
1980年代，瑞士富有传奇色彩的手表产业由于来自日本的竞争所导致的十年内出口额下降一半而陷入衰退。
During the 1980s Switzerland's legendary watch industry fell into decline, with exports falling by half within a decade as a result of Japanese competition.
由于去年夏天以来乘客数量减少，航空公司缩减支出，波音2008年接到的订单量同比下降一半以上。
Orders for Boeing planes plunged by more than half last year, a reminder that carriers have been scaling back spending since last summer to cope with fewer air travelers.
主修人文学科的学生数量已经下降了近一半。
The number of students majoring in the humanities has declined by about half.
煤炭价格也很低，原因是供应过剩和需求下降，尤其是来自中国的需求，中国消耗了全球一半的煤炭。
Coal prices also are low, owing to oversupply and the scaling-down of demand, especially from China, which bums half of the world's coal.
因为供应过剩和需求下降，煤炭价格也很低，尤其是消耗了全球一半煤炭的中国的需求下降。
Coal prices also are low, owing to over-supply and the scaling-down of demand, especially from China, which burns half of the world's coal.
随着时间的推移，这种方法已经使吸烟人数有所下降——自20世纪70年代以来，吸烟人数几乎减少了一半。
This approach has led over time to a fall in smoking with numbers having roughly halved since the 1970s.
举例来说，过去两个月铜价已经下跌了23%，这一定程度上是因为人们担心中国对该种金属的消费——今年中国的铜消费已下降逾一半。
Copper prices, for example, have fallen 23 per cent in the past two months, partly on fears over Chinese consumption of the metal, which has fallen by more than half this year.
去年印度的糖产量几乎下降了一半，由世界第二大的糖料生产国，变为世界最大的糖料进口国。
India's sugar production fell by almost half last year, turning the country from the second-biggest producer to the biggest importer.
世界最大的化学公司巴斯夫发现在销量和价格骤降下盈利下降了一半。
BASF, the world's biggest chemical company, saw its profits drop by half as both volumes and prices slumped.
心率下降了近一半，但对血压和心跳强度没有产生太大的影响。
Heart rates also fell by nearly half without much effect on blood pressure or the strength of the heart-beat.
越是昂贵的手表，收到的打击越大：比如说，今年七月铂金表的销量比去年同期下降了一半。
The most expensive watches have been hit especially hard: in September sales of platinum watches, for instance, were down by nearly half compared with last year.
随着亚利桑那房地产泡沫的破灭，钱德勒同样感受到了其中的痛苦。房子价格下降了一半同时收到止赎权的住户在猛增。
Chandler too has felt its share of pain as Arizona’s housing boom crumbled; home prices are down by half and foreclosures have soared.
拉丁美洲和前苏联改进程度最高，这些地区的儿童死亡率下降了一半多。
The biggest improvements are in Latin America and the former Soviet Union, where mortality rates have fallen by more than half.
好消息是在人们停止使用烟草制品后心脏病发作和中风的危险立即开始下降，并且在一年后可下降达一半。
The risk of heart attack and stroke starts to drop immediately after a person stops using tobacco products, and can drop by as much as half after one year.
因为第三部门的职位需求下降了近一半，而公营部门则下降了7.5%。
Jobs in the third sector are down by nearly half, and vacancies in the public sector have decreased by 7.5 per cent.
因为第三部门的职位需求下降了近一半，而公营部门则下降了7.5%。
Jobs in the third sector are down by nearly half, and vacancies in the public sector have decreased by 7.5 per cent.
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