1) seed longevity
种子寿命
1.
Seed longevity increased as the storage temperature decreased.
随着贮藏温度的降低,种子寿命不断延长,在50~20℃的范围内,每降低15℃,种子寿命延长10。
2.
Seed longevity increased as the storage temperature and seed moisture content decreased,seed longevity increased 1.
随着贮藏温度和含水量的降低,种子寿命不断延长,每降低1%的含水量,种子寿命延长1。
3.
Moderate drying during storage could improve the longevity of onion seeds, but drying to extremely low moisture contents resulted in reduced seed longevity.
2 %不利于延长种子寿命。
2) medium lived seed
中寿命种子
3) average longevity of seed
种子平均寿命
4) neutron lifetime
中子寿命
1.
Through analysis and research on the principle of neutron lifetime logging, the factors which affect the accuracy and technique are dec-scribed in detail in this paper.
本文通过对中子寿命测井原理进行细致分析研究,从中探寻影响其准确度的因素;并详细描述了中子寿命测井工艺方法,在此基础上针对生产实际情况优选硼中子寿命测井,开展了油层的剩余油饱和度确定、堵水压裂层位确定、管外窜槽检测等方面的应用,在实际生产中取得了较好的应用效果。
2.
Gadolinium neutron lifetime logging (GNLL) is a new technique used for detecting reservoir performance, which is developed by the improvement of boron neutron logging.
钆中子寿命测井是在硼中子寿命测井改进中发展起来的一种油藏动态监测新技术,采用“测-渗-测”方式,通过向地层渗入钆溶液改变井筒附近地层水的俘获截面获取地层剩余油信息。
3.
With proper designs of tool configuration,neutron burst sequence,as well as acquisition of energy and time spectra of gamma ray,an integrated pulsed-neutron gamma ray logging tool,which involves carbon/oxygen logging,neutron lifetime logging and oxygen activation logging,is constructed.
通过恰当地设计测井仪结构、中子发射时序以及能谱和时间谱采集方式,可以构成集碳氧比、中子寿命、氧活化3项功能于一体的脉冲中子伽马综合测井仪。
5) Neutron lifetime logging
中子寿命
1.
Boron-injected neutron lifetime logging thchnology for evaluating cement channeling;
应用注硼(钆)中子寿命测井技术评价管外窜槽
2.
By applying Gadolinium-injected Neutron lifetime logging Technology and according to region characteristic,the multilevel logging-injecting-logging technique have developed,the law of imbibitions and diffusion is summarized and optimal logging time is determined.
采用注钆—中子寿命测井技术 ,根据区块特征开展多级“测—注—测”工艺研究 ,总结出钆酸渗吸扩散规律 ,确定最佳测井时间 ,根据区块油藏情况优化解释模型及参数 ,并结合油藏动、静态资料进行综合评价。
6) Minority carrier lifetime
少子寿命
1.
The minority carrier lifetime(τ) scan mapping along the multicrystalline ingot was obtained by means of Microwave Photo Conductive Decay (μ-PCD).
应用微波光电导衰减仪(μ-PCD)测得了铸造多晶硅硅锭沿生长方向少子寿命的分布图。
2.
All these three ways can improve the minority carrier lifetime effectively.
三种吸杂方式都能明显提高多晶硅的少子寿命。
3.
The effects of surface thermal oxidation on the minority carrier lifetime of Czochralski (CZ) silicon wafers are investigated by photoconductive decay (PCD) method.
用高频光电导衰减法 (PCD)研究了热氧化钝化对直拉硅少子寿命的影响 。
补充资料：种子的寿命(图)
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种子的寿命是指种子的生活力在一定环境条件下保持的最长期限。超过这个期限，种子的生活力就会丧失，也就失去了萌发的能力，影响种子寿命的因素很多，一方面决定植物本身的遗传性，不同植物的种子，其寿命差异很大，长的可达百年以上，如莲子；短的仅能存活几天或几周，如柳树、槭树。另一方面也与种子采收后的贮藏条件有关，一般贮藏种子的最适条件是干燥和低温，只有在这样的条件下，种子的呼吸作用最微弱，种子内营养的消耗最少，有可能度过最长时间的休眠期。此外，种子寿命也与母体植株的健康状况、种子本身的成熟度和种皮的保护状况以及病虫害对种子所产生的影响等因素有关。
种子贮藏年限的长短能影响种子的生活力，一般种子贮存愈久，生活力也愈衰退，以至完全失去生活力，至于种子失去生活力的原因，可能是由于酶的破坏以及胚细胞本身的衰退与死亡等因素造成的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。