查询词典 natural

Similarly, the addition of any three natural numbers must satisfy associative law:+c=a+, and then we can verify that for any n natural numbers, the results of adding is the same in any associative way which keep the order of numbers.

类似地任何三个自然数可以有结合律：+c=a+，进而可以证明任何n个数的任何结合方式进行加法所得的结果是一致的。

The growth of radical and hypocotyls time of seed was delayed by long time natural store and refrigeration, and the condition of long time natural store for Atriplex canescens seed's vigor was the worst.

长时间自然存放和冷藏均会推迟四翅滨藜种子胚根和胚轴的延伸日期，且长时间自然存放推迟的更晚。得出长时间自然存放使种子的活力降低最快。

Temperature is key factor for natural attenuation of nitrobenzene. The present study investigated the nitrobenzene of natural attenuation and nitrobenzene of bio-argumentation at 4℃and 20℃.

利用人工配制的2种不同浓度（1000和100μg·kg-1）的硝基苯污染底泥，研究了4℃和20℃ 2种温度条件下硝基苯的自然衰减和生物强化降解情况。

Secondly, by using of the medium axiomatic set theory, a natural number system in MS is constructed, and it is proved that five axioms of Peano′s natural number system are theorems is MS.

其次，利用中介公理集合论MS的相关理论，构造了MS中的自然数系统，证明了Peano5条公理为MS中的定理。

Biological pesticide pyrethrum 50 per cent of the original drug and aerosol, sprayed the Treasury agents, natural pyrethrum mosquito coils, electric-mosquito coils and other agents of natural Pyrethrum ; Melia azedarach plight of 100 percent neem oil, 37 percent Melia azedarach EC, 0.3 percent Melia azedarach EC.

生物农药有50%除虫菊原药及气雾剂、喷务剂、天然除虫菊蚊香、电热蚊香片等天然除虫菊素制剂；苦楝素100%苦楝原油、37%苦楝乳油、0.3%苦楝乳油。

It also contains 100% natural vitamin E derived from natural vegetable oils, balanced B-complex and vitamin C.

它也含有从自然蔬菜油里提取的全天然的维生素E，平衡维生素C和复合维生素B。

California Baby's no tears formula is an all-natural botanical blend of herbs, rich emollients, and natural sunscreens that combine to leave delicate hair shiny and smooth.

加州宝宝的无泪配方是全天然的植物配方，丰富的润滑成分，天然的防晒成分，让娇嫩的头发光滑亮泽。

The tendency of neoteric natural science progress indicates that the barycenter of natural science is life science, and neurobiology is the most important region in 21st century life science research, and will develop fleetly .

近代自然科学发展的趋势表明，21世纪的自然科学重心将在生命科学，而神经生物学是其中的最重要的领域，必将飞速发展。

Among which, grassland degradation, desertification and basification is becoming increasingly serious and the natural ecological environment is deteriorating. All these problems together with the losses caused by various natural disasters are seriously threatening the development of grassland animal husbandry economy of Mongolia.

其中，草原退化、沙化、碱化日益严重，自然生态环境恶化，各种自然灾害造成的损失，严重威胁着蒙古国草原畜牧业经济的发展。

After analyzing natural factors and human activities, the paper considers the following as main reasons for soil degradation of the source regions of the Yellow River: a natural conditions, climate arid, precipitation decrease, bad soil condition and rich sand source; b human factors, overgrazing, destructive felling, irrational grazing system, wild animals battue, and so on.

在综合分析自然因素和人为活动后，本文认为气候干旱、降水减少、土壤条件差、沙源丰富等自然条件和超载放牧、乱挖滥采、放牧制度不合理、大量捕杀野生动物等人为因素是造成黄河河源区土地退化的主要原因。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。