2) Paying close attention;on the alert.
留心着;警惕着
3) Watch out for pickpocket .
留心提防着扒手。
4) retention
[英][rɪ'tenʃn] [美][rɪ'tɛnʃən]
留着
1.
There is some relation between the retention ability of furnish pulp and the condition of charge.
结果表明:添加CPAM后,浆料Zeta电位增大,可溶净电荷变化不大,胶体滴定比值(CTR)明显增大;浆料的留着性能与电荷状况之间存在一定关系。
2.
The retention performance of cationic dispersed rosin size prepared in our laboratory on reed pulps was studied via dynamic drainage jar(DDJ) .
本文利用动态滤水仪以及可见光分光光度计等对自制阳离子分散松香胶的留着性能及影响因素进行了初步的研究。
3.
The influences of the fillers properties on retention and the upgrade paper strength were also discussed.
本文研究了氧化铝、碳酸钙、进口钛白粉和国产钛白粉四种填料的特性 ,及填料特性对留着、纸页强度的影响。
5) retention rate
留着率
1.
The paper studied the application of the organic bactericide AEM5700 on the antibac- terial paper,detected the retention rate on different paper and its antibacterial effect.
该论文研究了有机抗菌剂AEM5700在抗菌纸上的应用,检测了其在不同原料中的留着率,以及AEM5700的抗菌效果。
2.
The effect of dosage, modifica-tion time and temperature of OTAC on the retention rate of the modified attapulgite in paper was investigated.
用十八烷基三甲基氯化铵对凹土进行表面改性并进行了实验室加填试验,探讨了十八烷基三甲基氯化铵的用量,改性时间,改性温度对凹土在纸页中留着率的影响。
3.
the new processing technology raises the retention rate by more than 27% on the average.
采用三波长ＵＶ光谱法测定了单宁胶在增强处理湿法纤维板时的留着率；采用正交试验和光谱分析相结合的方法，对纤维浆料的留着率进行了分析和测定，提出了提高留着率的方法、措施；确定了在浆内施加条件下，留着率最佳的合理工艺。
6) retention
[英][rɪ'tenʃn] [美][rɪ'tɛnʃən]
留着率
1.
With the increase of combined phosphorus of starch phosphate ester,the retention of paper additive would increase to all of filling and fibril.
磷酸化反应时加入少量尿素,可以起到加速磷酸化反应和增加留着率的作用。
2.
In the paper,the effects of the ion type,charge density and molecular weight of polyacrylamide on the retention of mineral fibers and the properties of the paper were studied.
结果表明,实验所用的APAM、CPAM及AM-PAM均可提高矿物纤维的留着率和纸张的物理性能,CPAM、AM-PAM的作用效果好于APAM;其中离子度为2%、相对分子质量为1400万的CPAM比未加助剂的纸张矿物纤维留着率提高32。
3.
Methods improving the retention and drainage properties of straw pulps were introduced.
介绍了提高草浆留着率及滤水性能的方法,表明通过一些化学、生物的方法可以使其得到改善,非木材制浆是有一定发展潜力的。
补充资料：留心
注意：～听讲ㄧ参观的时候他很～，不放过每一件展品。
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