查询词典 carbon 14

This invention discloses one lithium ion battery anode materials, which is made by following steps: a, mixing lithium salt, microcosmic salt and ferrous oxalate for grinding with mole proportion as one to one to one; after drying under nitrogen gas protection in 300-400DEG C for heating for five to eight hours; b, adding addictive agent into the mixture with weight proportion as3-10:1; c, bursting the mixture gas under inertia gas protection under temperature of 500-800DEG C for 10 to 24 hours; d, adding the product into crucible with active carbon 10 to 40 g and adjusting the microwave frequency into 140 to 700 W with control time as 1 to 14 minutes.

本发明公开了一种锂离子电池正极材料，由70-90wt％的LiFePO 4 和10-30wt％的碳组成，按照以下步骤制备：(1)将锂盐、磷盐和草酸亚铁混合球磨，所述锂、铁和磷元素的摩尔比为1∶1∶1，干燥后在氮气保护下300～400℃预热5～8小时；(2)在上述的混合物中加入添加剂，所述混合物与添加剂的重量比为3～10∶1；(3)将步骤(2)得到的混合物在惰性气体保护下，进行焙烧，焙烧温度为500～800℃，焙烧时间为10～24小时；(4)将焙烧后的产物压片，放入装有活性炭10～40g的坩锅，再将坩锅放入微波炉中，微波功率调至140～700W，控制时间为1～14分钟。

Blade according to claim 14, characterised in that the two filling bodies (52a, 52b) housed in the shell (44) and on either side of the spar (50) are also constituted each by longitudinal mats or sheets of unidirectional carbon fibres agglomerated by a polymerised synthetic impregnation resin.

刀片根据索赔14 ，特点是在这两个加油站机构（ 52 A ， 52 B ）住在蚬壳公司（ 44 ）和对任何一方的SPAR公司（ 50 ）也构成了每一个纵向垫或床单单向碳纤维烧结由1 polymerised合成树脂浸渍。

The radioactive carbon atoms weigh 14 atomic units, whereas run-of-the-mill ones weigh 12 units.

这种放射性的碳原子为14原子单位，而普通碳原子为12原子单位。

The radioactive carbon atoms weigh 14 atomic units, whereas run-of-the-mill ones weigh 12 units.

放射性碳元素的原子量是14个单位，一般碳元素的原子量是12个单位。

The analysis by LC-MS demonstrated that GEB3 produced standard surfactin isoforms with side chain lengths of 13, 14 and 15 carbon atoms.

经LG-MS分析，GEB3产生由13、14和15个碳原子的脂肪酸链构成的标准表面活性素变异体。

In a parliamentary answer in July 2004, the Department stated that taking the train from London to Manchester would mean just 14% the carbon emissions of taking the car for the individual passenger.

在回答议会于2004年7月，该部表示，考虑火车从伦敦到曼彻斯特将意味着只有14 ％的碳排放量，以汽车为个别旅客。

Bonds become independent of the thickness and the crystallite sizes change negligible that the resistivity and surface energy of carbon films are about 14 Ω·μm and 28 mN/m, respectively.

厚度的变化不会使的键结改变且平均微晶大小变化不大，电阻率和表面能大约在14 Ω·μm和28 mN/m附近。

Smules claims that the log produces 14% less carbon dioxide than regular firewood, and produces more light and heat too.

斯谬尔斯称与普通的木柴相比，这种木料燃烧后释放的二氧化碳要少14%，而且能够产生更多的光与热。

The analysis by LC-MS demonstrated tha t GEB3 produced standard surfactin isoforms with side chain lengths of 13,14 and 15 carbon atoms.

经LC MS分析，GEB3产生由 13、14和 15个碳原子的脂肪酸链构成的标准表面活性素变异体。

A total of 14 CFRP (carbon fiber reinforced plastics) reinforced EWC beams were tested to failure to investigate the failure modes, failure mechanism and the flexural behaviors of them.

二、进行了14根 CFRP 增强复合木梁的结构性能试验，研究其破坏形态、破坏机理及受弯性能等，并与未增强木梁的试验结果进行对比。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。