1) trilobite
[英]['trailə,bait] [美]['traɪlə,baɪt]
叁叶虫
2) triple bond
叁键
1.
In this paper we have discussed and Compared the π bonds strength and σ bond Strength in carbon-carbon double bond and carbon-carbon triple bond.
本文较详细地讨论比较了碳碳双键与参键中π键的强弱及碳碳单键、双键、叁键中σ键的强
2.
Under different hetero-statues, the nucleophilic addition of triple bond compound is easier than that of double bond has been explained theoritically.
本文通过比较不同杂化状态的不饱和化合物的“供电”能力、亲核加成反应活性中间体的稳定性，从理论上解释叁键比双键化合物易进行亲核加成反应。
3) Sanye Insect tea
三叶虫茶
1.
Objective Inquire into the function and mechanisms of Sanye Insect tea of lowering the blood pressure.
目的探讨三叶虫茶的降血压作用及作用机制。
2.
To investigate the Sanye insect tea drinking rate,annual consumption and the drinking custom of people living in Chengbu,Hunan,by stratified-random sampling method,647 community residents aged 15 years or older were interviewed by trained investigators with structural questionnaires at home.
为了解城步山区普通人群饮用三叶虫茶的民族习俗,采用分层随机抽样方法,通过问卷调查和当面访问,考察了湖南省城步山区城镇和农村人口(647人)的饮用虫茶情况。
4) trilobite
[英]['trailə,bait] [美]['traɪlə,baɪt]
三叶虫
1.
Ecology Assembalge of Trilobite and its Paleo-environment Significance During the Cambrian in Jiangshan;
浙江江山寒武纪三叶虫生态组合及其古环境意义
2.
Middle and late Cambrian trilobites from Fenghuang Dama area,western Hunan;
湘西凤凰大马地区中、晚寒武世三叶虫
3.
Ordovician trilobite biogeography of China
中国奥陶纪三叶虫生物地理
5) defoliators
食叶害虫
1.
Control of forest defoliators with mixture of 25% chlorbenzuron Ⅲ flowable formulation and abamectin emulsible concentrate;
灭幼脲Ⅲ号与阿维菌素混剂防治林木食叶害虫试验
2.
Control efficiency of poplar defoliators can be reached by spraying 3% high permeability fenoxycarb over tall poplar trees along the express highway with high-range sprayer, and method is superior to the conventional practice.
利用高射程喷雾机喷施药物防治高速公路杨树食叶害虫,能够取得因杨树树体高大等原因用常规喷药方式难以达到的防治效果。
6) Colaphellus bowringi Baly
大猿叶虫
1.
Second Diapause and Diapause Induction of Non-diapause Adults after a Period of Egg-laying in Cabbage beetle, Colaphellus bowringi Baly (Coleoptera: Chrysomelidae);
大猿叶虫二次滞育和非滞育成虫产卵后滞育诱导的研究
2.
The cabbage beetle,Colaphellus bowringi Baly is a serious pest of crucifers in Taian city Shandong province.
在山东泰安大猿叶虫是十字花科蔬菜上的重要害虫。
3.
The biological characteristics of Colaphellus bowringi Baly(Coleoptera:Chrysomelidae)were studied.
对大猿叶虫生物学特性研究的结果表明,在山东省泰安市田间,该虫有两个明显的危害期,分别出现在春季和秋季,以成虫在土中越夏和越冬,年发生1～2代,部分隔年繁殖。
补充资料：叁键
分子式：
CAS号：
性质：若两个原子之间形成σ键后，各还有两个未成对的P电子（如键轴为X轴，这两个P电子分别为Py和Pz）可生成两个π键。这种（σ+π+π）的组合称为叁键，以A≡B表示，如H—C≡C—H（乙炔）。叁键化合物具有不饱和性，能发生加成、聚合等反应。
CAS号：
性质：若两个原子之间形成σ键后，各还有两个未成对的P电子（如键轴为X轴，这两个P电子分别为Py和Pz）可生成两个π键。这种（σ+π+π）的组合称为叁键，以A≡B表示，如H—C≡C—H（乙炔）。叁键化合物具有不饱和性，能发生加成、聚合等反应。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条