Light is an important factor in the plant life cycle.
在植物的整个生长发育中，光是一个重要环境因子。
This paper mainly discussed the basic definition and types of plant life cycle form.
主要阐述了植物生活史型的基本定义和基本模式。
The transition from vegetative to reproductive growth is the major developmental switch in plant life cycle.
开花是植物从营养生长到生殖生长的一个重要转折点。
By dynamic changes of endogenous hormones, we discussed the regulatory effect of hormone and the significance of hormonal balance in different plant life cycle forms of c.
通过对植物内源激素的动态变化规律的分析，来探明内源激素在长春花不同生活史型中所起到的调控作用，以及激素平衡对生活史型转变的意义。
The major reason for such low values is the fact that most crop plants display their maximal photosynthetic efficiency for relatively brief periods of time during the life cycle of the plant.
这样低值的主要原因是，大多数作物只能在整个生命周期中相对短的时期内表现出最大的光合效率。
The life cycle of the plant depends on the amount of daylight.
植物的生命周期取决于日光的照射长短。
In life cycle assessment of waste water plant, the focuses of people's attention are sewage treatment and its impact on the environment.
在污水处理厂的生命周期评价中，人们关注的焦点是污水的处理及其对环境的影响。
This plant effloresces only once during its life cycle.
这植物在其生活史中只开花一次。
Biennial a plant that completes its life cycle within two years.
二年生植物：在两个生长季内完成全部生活史的植物。
The plant suffers various adverse environmental stresses in its life cycle.
植物在它的生命周期中要经历各种逆境胁迫。
For decades it has been possible to identify THC chemically, but the drug is not present in all plant tissues or throughout a plant's life cycle.
几十年来尽管能够通过化学手段鉴定THC，但是这种药物并不是植物所有组织中存在，而且不是在植物的整个生命周期中存在。
The dormant period is another stage in the life cycle of the plant.
休眠期是这种植物生活史中的另一个阶段。
Plant living cells must constantly response to many kinds of intercellular and extracellular stimulants like hormones, chemicals, light rays and microbes during the various stages in life cycle.
在生物周期的各个阶段中，植物活体细胞需要不断地对细胞内外的各种刺激如激素、化学物质、光照、温度和微生物等做出应答。
The cycle of two ethane furnaces in No. 1 ethylene plant of YPC Limited Company is very short. The short life-span of tubes in radiation section affects the stable operation of quench oil system.
中国石化扬子石油化工股份有限公司烯烃厂1号乙烯装置两台乙烷炉运行周期一直偏低，辐射段炉管使用寿命较短，并影响急冷油减粘系统的稳定运行。
The paper describes some measures to guarantee long life cycle of the ethylene plant in Maoming and the problems that should be solved.
论述了茂名乙烯长周期运行采取的措施和面临的问题。
The lief cycle, life habits and host plant of CPB, as well as its harm and occurrence law in the potato planting areas were studied.
以马铃薯甲虫为供试材料，研究其在马铃薯种植区的生活史、生活习性、寄主、范围和田间消长规律等。
The lief cycle, life habits and host plant of CPB, as well as its harm and occurrence law in the potato planting areas were studied.
以马铃薯甲虫为供试材料，研究其在马铃薯种植区的生活史、生活习性、寄主、范围和田间消长规律等。
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