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Natural enemies of Hyphantria cunea (Drury) were investigated in Qinhuangdao, Hebei Province. Two parasitoids in larva stage, 12 parasitoids in pupal stage and 2 predators (Coccinella septempunctata and Tenodera sinensis) were found. |
中文意思: 摘要通过对美国白蛾各个发育期的天敌进行调查与研究,发现除了捕食性天敌七星瓢虫、大刀螳螂等外,幼虫期有2种寄生性天敌、蛹期有12种寄生性天敌,这为保护和利用天敌、有效控制美国白蛾提供了依据。 |
以下为相关句子列表(点击查看,可以看对应的解释):
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Natural clays have their structure which must be destroyed during the deformation process.
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天然粘土一般都具有结构性,其变形过程必然伴随着结构的破坏。 |
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Natural diamond die is one the best for the drawing of precision wires.The diamond is selected meticulously to be complete grains with good.Symmetry free from any foreign substances .It is prepared with advanced powdermetallurgicaltechnology that makes th
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天然金刚石拉丝模对于各种精密线材的拉制是最好的模具之一,采用的天然金刚石是经过精心挑选的,必须是颗粒完整对称性好,没有杂质,又采用先进的粉末冶金技术镶套从而使金刚石在拉拔过程中获得最大的强度和抗爆裂能力。 |
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Natural diet: nectar, flowers, fruits, berries, pollen, seeds, buds, insects and their larvae; causes considerable damage to apple and pear orchards, other cultivated fruit trees and grain fields.
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吸蜜的食物包含花蜜,花,果,浆果,花粉,种子,芽苞,昆虫及蛹.有时吸蜜鹦鹉还会破坏人类种植的苹果园.梨子园,或者其他水果,谷类园区. |
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Natural disasters are a formidable enemy of the mankind which threaten the lives and subsistence of people in the world and restrict the sustainable development of society.
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灾害,威胁着世人的生命和生活,制约着社会的可持续发展,是人类的大敌。 |
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Natural disasters brought a lot of influences to the region, not only destroying the agricultural production and the economic life, but changing the environment landscapes and branding the common social customs as special.
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自然灾害对江汉平原区域社会发展产生多方面影响,不仅对农业生产、经济生活造成破坏,而且带来环境景观的变迁,并给民风民俗打上烙印。 |
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Natural enemies of Hyphantria cunea (Drury) were investigated in Qinhuangdao, Hebei Province. Two parasitoids in larva stage, 12 parasitoids in pupal stage and 2 predators (Coccinella septempunctata and Tenodera sinensis) were found.
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摘要通过对美国白蛾各个发育期的天敌进行调查与研究,发现除了捕食性天敌七星瓢虫、大刀螳螂等外,幼虫期有2种寄生性天敌、蛹期有12种寄生性天敌,这为保护和利用天敌、有效控制美国白蛾提供了依据。 |
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Natural essence ofV C with abundance, the efficiently beautiful leuco - isolate rho factor of this article, the NMF is natural to protect the wet rho factor, VE etc., the efficiently beautiful and white rho factor can permeate the skin quickly, lauteringi
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成份:本品含丰富的天然维C精华、高效美白隔离因子,NMF天然保湿因子、VE等,高效美白因子能迅速渗透肌肤,过滤紫外线,防止黑斑形成,同时有效隔离污染、防止外界不良环境及彩妆对皮肤的伤害,为肌肤提供一整天的健康保护。 |
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Natural fibres contain impurities in the form of oils, fats and waxes.
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天然的纤维含有一些类似油和石蜡之类的杂质。 |
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Natural flake graphite powder used in nonferrous,metal molten furnace for oxygen-proof material.
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天然磷片石墨粉,用于有色金属熔炉液体表面防氧化覆盖粉。 |
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Natural food symbiotic microbiological product obtained from animals and poultry intestinal.
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在健康动物和鸟类胃肠道中提取微生物共生菌群基础上制取的天然产品。 |
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Natural force within us is the true healer of disease.
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我们体内的自然力量是疾病的真正治疗者。 |
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