查询词典 hours

The leaching ratio of copper from the copper slag, roasted at 680℃ for 4 hours, attains approximately 92% under the conditions of 2 mol/L sulfuric acid leaching for 2 hours at 70℃.

在680℃焙烧4h后，采用2mol/L硫酸于70℃浸出2h后可以达到良好的浸出效果，使铜的浸出率达到92%以上。

Loaches were exposed to different extent polluted water with waste cells and the SOD and CAT activity in animals was detected after 48 hours and 72 hours exposed.

将泥鳅暴露于不同浓度的废旧干电池污染液中，于48 h、72 h测定其超氧化物歧化酶及过氧化氢酶的活性，结果显示低浓度、短时间内SOD、CAT活性被诱导，随着废旧干电池污染液浓度的增大和暴露时间的延长，酶活性被抑制。因此SOD、CAT可作为生物标志物来监测水生态系统的污染

The swelling and loss of electron density of Müller cell cytoplasm were significantly noted and retina recovered to normal morphology in 4 hours and 72 hours after introcular injection of L-α-AAA respectively.

在短时间内、单一的破坏视网膜Müller细胞，并不能造成眼免疫赦免状态的削弱或破坏。

The free radical can kill malarian via destroying cell membrane. To explore the possible pathway of signal conduction of the cell apoptosis induced by ART, P388 cells were treated with FeSO4 first for 24 hours, and then treated with ART for 48 hours.

有研究表明，肿瘤患者，尤其是白血病患者的铁和转升一——&'&&一'&&&—&—&&&'&&———&&—&&&————&'&'———&&&' 铁蛋白受体水平显著增高，而 ART具有特异性的过氧桥结构，从而可使铁介导AJtf分于内过氧桥裂解产生自由基。

During their brief stay of almost 32 hours, the two astronauts performed two moonwalks, each a little less than four hours long.

在短暂停留32小时期间，进行了两次月面行走，每次不到四小时。

During their brief stay of almost 32 hours, the two astronauts performed two moonwalks, each a little less than four hours long.

在短暂停留32小时期间，进行了两次月面行走，每次不到四小时。附件：您需要登录才可以下载或查看附件。没有帐号？加入超大

Only six percent reported getting eight hours of sleep on weeknights and only 22 percent reported getting at least seven hours.

只有6 ％报道越来越八小时睡眠对weeknights只有22 ％的报道越来越至少七个小时。

Investigators at the University of California in San Diego found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling and staying asleep, as well as a number of other sleep problems, than people who sleep 8 hours a night.

圣地亚哥加利福尼亚大学的研究人员发现在入睡，保持睡眠等方面，每晚睡眠 9 或 10 小时的人比睡 8 小时的人存在更多问题。

More Than 8 Hours Sleep Too Much of a Good Thing 1. E: Investigators ...found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling, than...

该句回应了文章的主题-睡眠时间太长不是好事；对应被选项发现只有E和F与这个内容有关系，但段落最后一句中又提到了睡眠不足的人的问题，因此判断E是答案(睡眠长和睡眠短的人所面临的睡眠问题)。

Umbers this nation has never seen, by people who waited three hours and four hours, many for the first time in their lives, because they believed that this

是那些今天在学校和教堂排着长队、数不胜数的选民做出了回答；是那些为了投票等待了

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。