We study potato tube's virus-free method and rapid production method of virus-free plant virus-free potato.
即对马铃薯块茎的脱毒方法、脱毒苗脱毒种薯快速繁殖的方法进行研究。
Both healthy plant and pathogen-free plant had not these symptoms, yet there were some different in tissue differentiation of both.
健株和脱病植株地上部营养器官均不存在上述症状，但两者在组织结构分化程度上有所区别。
At the same time, the activity of isoenzyme of peroxidase and the content of soluble protein in the virus-free plant were better than those of...
同时脱病毒薄荷的过氧化物酶同工酶活性和可溶性蛋白含量均高于未脱毒薄荷。
The techniques included new methods to identify viruses in sweet potato roots, and better systems for multiplying improved virus-free plant varieties.
这些技术包括辨认甘薯根内病毒的新方法以及扩大经改良无病毒作物品种的更好方法。
Use one year old virus-free plant of hops as cuttings, studies the effect of NAA, Diameter of cuttings and pitch Numbers on hops virus-free plant greenwood cuttings Rooting.
采用啤酒花脱毒苗一年生枝条作插条，研究了插条粗度、节数与NAA对啤酒花脱毒苗绿枝扦插生根的影响。
The utility model discloses an irrigation-free plant wall body. Supporting bases filled with mud fertilizer and water-keeping material are arranged on the wall surface every other certain height.
本实用新型公开了一种免灌溉植物墙体，它在建筑墙面上每隔一定高度设置一基托，基托上填充有泥土肥料及保水材料。
Imagine if trees gave free WiFi, people would plant more trees like crazy.
想象一下，如果树木能提供免费的无线网络，人们会疯狂地种植更多的树木。
It is pleasant for me to plant in my free time.
在空闲时间栽种对我来说是件愉快的事。
So when Luke was free, he helped his father and Luke learned that a tomato plant does need much care.
卢克空闲的时候，他会帮父亲干活，并了解到西红柿苗需要悉心呵护。
That is why it is so important that free and commercially independent research on plant genetics can be carried out in universities”, says Bengt O. Bengtsson.
这也是什么自由和脱离商业的植物遗传学研究可以在大学进行为显得如此重要的原因。
I served on a safety oversight board at the Daya Bay plant, and we had free access to the facilities, including all levels of management.
我是大亚湾核电站安监会成员，可在各个管理层级自由出入。
Leave plant stems free to catch air and moisture and resist disease.
让植物自由的生长，接触空气和水分，抵抗疾病。
These plant chemicals have been shown to help slash the risk of major diseases by helping to protect against the harmful effects of free radicals.
这些植物性化学药品已表明可以通过帮助免受自由基的不利影响，减少患上重大疾病的风险。
Alcohol free products are available, and usually contain astringents like witch hazel mixed with soothing plant ingredients such as aloe and seaweed extracts.
也有不含酒精的产品，这类产品多含金缕梅和其他一些镇痛的植物成分，如，芦荟和海藻提取物。
Eagle Lake, which supplies water to nearby Bar Harbor, is deep, clear, and relatively free of plant life.
向附近的巴尔港提供水源的鹰湖，深邃、清澈，相对而言植物稀少。
Such a breakthrough, combined with enough cast-aside plant matter to sustain it, and possibly some of the plant's oil, would provide for a plastic completely free of fossil fuels.
如果真地实现了这一突破，再加上许多可以用来支持其存在的装置，也许还有一些燃料油，那么也许我们就能完全脱离化石燃料而制取塑料制品了。
Most of the fiber and water in the plant-based meal is calorie-free and would be excreted out, NOT turned into extra body fat.
大多数植物饮食中的纤维和水不含卡路里，它们将会被排除体外，不会转变成脂肪。
Japan's Prime Minister Naoto Kan has called for his country to develop into a nuclear-free society, amid rising public anger at the continuing crisis at the Fukushima Daiichi plant.
鉴于近日逐渐高涨的公众对于福岛危机的愤怒，日本首相菅直人近日宣布日本将逐步过渡到一个不依赖核能的社会。
Plant uptake of a metal depends primarily on the free metal ion activity.
植物对金属的吸收主要取决于自由态离子活度。
Eagle Lake, which supplies water to nearby Bar Harbor, is deep, clear, and relatively free of plant life.
鹰湖，供水到附近的巴尔港，深而清晰，相对便利了那里植物的生存。
Eagle Lake, which supplies water to nearby Bar Harbor, is deep, clear, and relatively free of plant life.
鹰湖，供水到附近的巴尔港，深而清晰，相对便利了那里植物的生存。
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