1) sealing duration
封合时间
2) Sealing time
封药时间
3) airproof-time
密封时间
1.
Discussed the effect resulted from airproof-time since the standard sources prepared in radiation measurement.
详细介绍了刻度用镭标准源的制备技术和检验方法,探讨了密封时间对放射性活度测量的影响。
4) non-steady heat transfer
启封时间
1.
The paper sets up non-steady heat transfer equation in tunnel fire and the equation of energy conservation of the smoke on the basis of the test determined temperature distribution of hydrocarbon fire in tunnels according to the basic dynamics and heat transfer theory.
本文从火灾动力学和传热学的基本原理出发,以实验测定的烃类隧道火灾温度分布为基础,建立了隧道火灾非稳态传热方程和封堵后烟气热衡算方程,利用差分数值解法给出了隧道烟气最高温度区域的温度随时间的变化,得到火灾持续2h,隧道拱顶最高温度可达到1086℃,封堵灭火后安全启封时间为38h的结论。
5) fencing time
封育时间
1.
In order to study the effect of different fencing time to arid and semi-arid grassland plant characteristic values and diversity,as well as to find out the optimum fencing period in the ecotone of Agriculture-animal Husbandry in the north of China,quadrat method was quoted to investigate plant growth during the growing season(Jun.
为研究我国北方农牧交错带不同封育时间对干旱、半干旱草原植物特征值及多样性的影响,同时探索农牧交错带草原封育周期,本研究选取位于我国农牧交错带的宁夏盐池人工封育草原为研究对象,采用样方调查法,于每年7-8月份(植物生长季节)对封育区植被生长状况进行调查,调查内容包括:植物名称、植物种数、株数、盖度、高度、地上生物量(鲜重)等。
2.
Applying quadrat method,the vegetation of Yanchi county of Ningxia Ningxia Hui Autonomous Region was investigated to study the influence of different fencing time on community structure and biomass.
结果表明:大部分优势植物种在封育第4、第5年重要值最大,随着封育时间增加,重要值降低;多样性指数变化不明显,表明长期完全封育对于植物物种多样性的恢复效果不显著;封育第3~7年地表出现结皮,有毒植物生物量降低,总的地上生物量也呈降低的趋势,说明长期封育并不能提高草场的生产力。
6) closing-river time
封江时间
补充资料:合时
合乎时尚;合乎时宜:穿戴~丨这话说得不大~。
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