1、

N, N-diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst.

以苯胺和溴乙烷为原料,用四乙基氢氧化铵作相转移催化剂,在常压下合成N, N二乙基苯胺.

互联网摘选

2、

Tetraethyl lead worked leaded gasoline but was phased out because It'spoiled catalytic converters.

汽油中的四乙基铅效果不错,但已经逐渐淘汰,因为它会破坏触媒转化器.

互联网摘选

3、

Tetraethyl lead worked in " leaded " gasoline but was phased out because It'spoiled catalytic converters.

[ 有铅 ] 汽油中的四乙基铅效果不错,但已经逐渐淘汰,因为它会破坏触媒转化器.

互联网摘选

4、

Conclusions ECG can be used as a surveillant index in workers exposed to tetraethyl-lead petrol.

结论心电图检查可作为四乙基铅汽油作业人员的监护手段之一.

互联网摘选

5、

Historically, the primary source of lead emissions has been the result tetraethyl lead additives to gasoline.

从历史的角度讲, 铅挥发的最初来源是添加到汽油中的四乙基铅.

互联网摘选

6、

The content of sulfoether in catalytic cracking diesel oil was determined by tetraethyl-lead potentiometric titration method.

应用四乙酸铅电位滴定法测定催化裂化柴油中硫醚硫的含量,电位稳定,终点电位突跃明显,结果可靠.

互联网摘选

7、

He described the evolution of resistance in Tetranychus against tetraethyl pyrophate.

他叙述了恙虫对焦磷酸四乙脂的抗性进化.

词典精选例句

8、

The cholesterol esterase and its oxidase were respectively immobilized onto sol-gel ( tetraethyl orthosilicate) and then an enzymatic reaction column was prepared.

采用溶胶凝胶技术分别固定了胆固醇脂酶和胆固醇氧化酶,制成固定化酶柱;

互联网摘选

  • 今日热词
  • 热门搜索

简答网英语词典(dict.jiandongshicai.cn)为您提供在线翻译英语词典单词大全英译汉汉译英等英语服务!可按单词字数词义分类查询。支持lj:关键词格式查询例句。

用户反馈
请选择反馈类型(可多选):
您的联系方式:(如需回复请填写联系方式)
反馈内容:
提交成功 小编会尽快处理
回到顶部
点击反馈