activity [æk'tiviti]

activity的基本解释

n.

活动, 行动, 活跃, 活力

• Stamp collecting is my favorite activity.
• 集邮是我最喜爱的消遣。

• The store was a scene of great activity.
• 这家商店顾客盈门。

• The school offers many recreational activities for the students.
• 该校为学生提供了很多娱乐活动。

• Too many extracurricular activities take up too much of our precious time for study.
• 课外活动太多，占去了我们很多宝贵的学习时间。

• He once engaged in anti-government activity.
• 他一度从事反政府的活动。

activity的同义词

n. activeness · action

与activity相关的网络例句 [注：此内容来源于网络，仅供参考]

Transcriptional activity of ACL recombinants normalized by Renilla was significant difference with pGL3-Basic expect for construct -27 and -15 (P＜0.01). Construct -919 contains highest activity. 3 times reduction of transcriptional activity from-919 to -679bp indicated that negative regulation factors located probably in this region. The activity started on construct -73 suggested the basal promoter activity was located within the -73 to +77bp region; Transcriptional activity of IDHβrecombinants was not significantly different between the recombinant -58 and pGL3-Basic. The activity started on construct -82, decreasing with the length of the fragment up to -164 in despite of a bit of fluctuation, and kept increasing from construct -164 up to -279. Thus, the basal promoter activity was located within the -82 to +16bp region, whereas the upstream 197bp conferred maximal transcriptional activity.

采用5'端缺失策略，结合启动子预测结果，分别构建了8个ACL基因和19个IDH3β基因启动子区重组子，将其转染猪PK15细胞系，并利用荧光素酶双报告基因系统检测了它们的活性，结果表明：在所构建的猪ACL基因5侧翼序列的8个重组子中，除pGL-ACL27和pGL-ACL15外，其它重组子的荧光素酶活性与阴性对照均达到极显著水平(P＜0.01)，表明它们均具有启动子活性，pGL-ACL919活性最强，到pGL-ACL679活性下降了将近3倍，说明从-919bp到-679bp区域可能存在负的调控位点，从pGL-ACL621到pGL-ACL73活性有小幅度下降，到pGL-ACL27活性降到与阴性对照水平无显著差异，表明维持该启动子的基本活性区域位于-73bp到+77bp之间；IDH3β基因启动子活性开始于pGL-IB82，然后虽然有些波动，但是活性一直下降直到-164bp处，之后活性又开始升高，直到-279bp处活性达到最高，这些表明维持该启动子的基本活性区域位于-82bp到+16bp之间，从-82到-279之间的179bp区域具有最高的启动子活性。

The results show the agglutinative activity, SOD activity, CAT activity and lysozyme activity in serum of Cyprians carpio increased in contrast to that of control group. The activity of fed lectin from Porphyra yezoensis group was 3.0, 0.8, 3.9 and 1.0 times, respedctively, as much as that of control group. The activity of fed lectin from Undaria Pinnatifida group was 1.0, 0.4, 3.0 and 0.7 times, respectively, as much as that of control group. The activity of infusing lectin from Undaria pinnatifida group was 3.0, 0.3 and 1.8 times, respectively, as much as that of control group. The activity of infusing lectin from Porphyra yezoensis group was 3.0 and 0.7 times, respectively, as much as that of control group.

实验结果表明，投喂和灌喂凝集素后，鲤血清中凝集素、超氧化物歧化酶、过氧化氢酶、溶菌酶活性与对照组相比都有提高，其中投喂条斑紫菜凝集素组比投喂对照组依次提高3.0倍、0.8倍、3.9倍、1.0倍；投喂裙带菜凝集素组比投喂对照组依次提高1.0倍、0.4倍、3.0倍、0.7倍，灌喂裙带菜凝集素组比灌喂对照组依次提高3.0倍、0.3倍、1.8倍；灌喂条斑紫菜凝集素组比灌喂对照组依次提高3.0倍、0.7倍。

The radical scavenging activity of Laminaria japonica pigments was studied by the DPPH2,2-Diphenyl~(-1-picrylhydrazylassay. The total pigments showed a strong DPPH radical scavenging activity of 65.819% with the concentration of 0.52mg.ml~(-1). The DPPH radical scavenging activity of fucoxanthin was 19.85% with the concentration of 0.27mg.ml~(-1). The antimicrobial activity of pigment in Laminaria japonica was studied by the method of round paper. The results showed that the pigment extracts have activity against Escherichia coli, Pseudomonas aeruginosa, Saricina flava and Saccharomyes cerevisia. The antibacterial activity of total pigments for Saccharomyes cerevisia was the strongest with an inhibition diameter of 18.9 mm; and the antibacterial activity of fucoxanthin for Saricina flava was also much significant with an inhibition diameter of 10.2 mm.

测定了它们对自由基的清除率和对四种细菌的抑菌效果，研究结果表明，总色素和褐藻黄素的浓度与自由基清除率成正比，当总色素浓度为0.52mg.ml~(-1)时，清除率达到65.819%，高于陆生植物黑米色素和紫甘薯色素；当褐藻黄素浓度为0.27mg.ml~(-1)时，自由基清除率达到19.85%，低于紫苏色素、紫甘蓝色素、黑米色素、紫甘薯色素；对大肠杆菌、绿脓杆菌、八叠球菌、金黄葡萄球菌的抑菌实验结果显示，海带总色素对金黄葡萄球菌的抑菌活性最强，抑菌圈直径为18.9mm；褐藻黄素对八叠球菌的抑菌活性相对较强，抑菌圈直径为10.2mm。

与activity相关的网络解释 [注：此内容来源于网络，仅供参考]

activity：活动

"统计表格"(schedule)的涵义与本条例第2条中该词的涵义相同;"创新活动"(innovationactivity)指由业务经营进行的任何活动,旨在─(b)在制造产品或提供服务时,引进任何新的或具实质改善的程序,而在本定义中,"活动"(activity)包括任何研究及发展计划;

activity：活度

物理化学中,活度(Activity)即某物质的"有效浓度",或称为物质的"有效摩尔分数". 此概念由吉尔伯特.牛顿.路易斯首先提出.

activity：活性

例如,"活性"(activity)一词在化学中用来特指分子与底物的反应,而在生物学中这个词则泛指有机体或其中某一成分的活性. 而且这两个领域在解决同一问题时往往采取不同的方式.

activity：动作

可记录的数据可以是动作(Activity) 、标签( tag) 、报警(alarm) 等. 动作包括命令、宏的执行,系统信息采集等. 记录的标签数据可以用来生成趋势图,而报警记录则可以用于故障分析和事故追踪, 它们分类存储在不同的记录文件里.

logistics activity：物流活动

现代物流作为一种先进的组织方式和管理技术,应包括:物流活动(logistics activity),指物流诸功能的实施与管理过程;物流作业(logistics operation),指实现物流功能时所进行的各项具体操作活动;物流技术(logisticstechnology),