寿命

In this work, the problems of spectrum, quantum yield and lifetime of Phosphoresconce, photosensitization and photostabilization of polymeric acetophenone and its derivatives have been studied.

本工作合成和研究了高分子苯乙酮及其衍生物的光谱、磷光量子产率、磷光寿命以及光敏化、光稳定等问题。

With unique silicone protective film, it can clean glass, protect glass surface layer from acid mist and steam, meantime, prevent drip because of temperature difference, indeed make glass free of spot. The effect shall be better for auto glass, it can availably clean dirt, while taking effect as "lubricating protective film" to reduce friction between rain blows and glass, so protect their service life, leave your visual field brighter.

本品独特的硅酮保护成膜，不但能将玻璃洗干净，更起到保护玻璃表层，不会受到酸雾水气的腐蚀，更能起到防止因温差而出现雾珠，真正使玻璃"无彩无瑕"，如汽车玻璃用效果更佳，不但能有效地清洗玻璃上的尘埃污垢，更能起到以"润滑保护膜"的作用减轻雨刮与玻璃的摩擦力，从而保护两者的使用寿命，使您的视野更明亮。

Catalytic activity can be improved by increasing the number of medium-strong acid site.

催化剂的使用寿命与催化剂酸性及结构有关。

Industrial coolant "Cutting Power- S" was developed in Jan. 2001 to enhance the knives lifespan up to 100~150% for drag saw and broaching processing. For soluble oils additive, it is effective to control acidify stink over three months

1.2001年1月成功开发工业用切削液添加剂〝削力-S〞，在特殊钢锯切及拉削加工可提升刀具寿命100-150%，在太古油添加剂部份，可有效抑制酸化发臭3个月以上。

And the upper limit of ratio between the acquisition and maintenance cost is determined.

因此，确定研制方案的重要工作之一就是从全寿命费用的角度出发，在采购费与维修费之间进行权衡[1]，确定最佳的维修费用水平，以确保有限资源的有效利用。

Actinic effects that do not affect performance, durability, or required characteristics will be recorded as observations only.

需要把不影响运行表现、寿命以及性能的光化学效果记录下来。

Actinic effects that do not affect performance,durability, or required characteristics will be recorded asobservations only.

需要把不影响运行表现、寿命以及性能的光化学效果记录下来。

At the same time , carry on detailed calculation to minor actinium , Pu and several kinds of long term fission products finally and make up the prediction data of that nuclide s accumulate quantity .

根据我国能源需求和核电发展状况的研究结果，对未来50年核电总体装机容量和乏燃料增长趋势进行了预测，对乏燃料中次量锕系核素，钚和几种长寿命裂变产物进行了计算，获得了累积量的预测数据。

This paper summarizes the meaning and factor of the instruments and equipment action cycle comprehensive mana...

本文阐述了设备寿命周期综合管理的意义、要素及设备管理的经济分析方法。

However, if you stop smoking, you will add years to your life.

然而，如果你停止吸烟，你会增加你的寿命。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。