查询词典 exceed

Levels of nitrogen dioxide currently exceed the World Health Organization's clean-air guidelines by 78%.

北京空气中的二氧化氮含量目前已经比世界卫生组织制定的清洁空气标准高出了78%。

The concentrations of nitrogen dioxide and ozone also exceed the objectives for a few days in a year.

二氧化氮及臭氧的浓度，每年也有几天超出了空气质素指标。

Levels of nitrogen dioxide in the city exceed the World Health Organization's clean-air guidelines by at least 78%.

与世界卫生组织对洁净空气的指导性标准相比，北京空气中二氧化氮浓度至少高出78%。

The results show that the atmosphere has a big influence on the thermal stability of C_(60).C_(60) begins to decompose at 423.5℃in the air,the deomposed peak temperature is 668.5℃,but very stable in the helium atmosphere,only sublimate,the crystal shape of C_(60) has a certain influence to its thermal stability.The synthesized nine kinds of nitro-fullerene derivatives all have good thermal stability and their decomposed peak temperatures all exceed 350℃.The thermal explosion temperature for 5 seconds delay of product 4 is 253℃.The category,number and position of nitryl group in nitro-fullerene derivatives all have influence on their thermal stability.

利用差热分析仪和DSC-TG综合热分析仪对C_(60)及其硝基衍生物的热稳定性进行了研究，结果表明，环境气氛对C_(60)热稳定性影响很大，C_(60)在空气中423.5℃开始分解，放热峰值温度为668.5℃，在氦气中很稳定，仅表现为升华，C_(60)的晶型对其热稳定性也有一定的影响；合成得到的九种硝基富勒烯衍生物都具有较好的热稳定性，分解峰值温度均高于350℃；产物4的5秒爆发点测试结果为253℃。

To the third quarter the fraction of 45 nm processors will exceed 50%.

到第三季度，分数为45纳米处理器将超过50 ％。

The noise level does not exceed 23 DB.

噪音水平不超过23分贝。

The switch current is constantly monitored and not allowed to exceed the nominal value of 1.2A.

开关电流是不断监测和不得超过1.2A的面值。

If your expenses exceed your income, you'll need to cut back on nonessential items.

如果你的支出大于你的收入，你需要在非基本支出中取消几项。

In a unit of nonrigid construction - for example , a unit of soft molded material - the displacement of either blade shall not exceed 3/32 inch (2.4mm) measured 2 minutes after removal of the weight

对非钢性结构的试样，例如软质材料的试样，压力移走后两分钟内测量任一个插脚的位移不超过2.4毫米。

Under normal circumstances, school suspension period can not exceed 10 days.

一般情况下，校内停学的时间不能超过10天。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。