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Related coefficient r =0.,P <0.0.Conclusion Non -standard desks and chairs have an bad effect on middle school students' eyesight.
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中学生坐不适合课桌椅时间越长,视力越差,相关系数r=-0.,P<0.0。 |
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Related structure and operative localization of internal auditory cannal by fossae cranii media
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中颅窝径路内听道的相关结构和手术定位 |
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Relation Between ABH Blood Group Substances and Transitional Cell Carcinoma of the Bladder,Pelvis and Ureter
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膀胱、肾盂及输尿管移行上皮癌和 ABH 血型物质关系的研究 |
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Relation Between Land Use Change and Soil Erosion Change——Taking the Midtown of Suining City As an Example
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土地利用变化与土壤侵蚀强度变化的关系分析——以四川盆地遂宁市市中区为例 |
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Relation between Photosynthesis Velocity of Peltigera canina(L.)Willd.Thallus and Temperature and Humidity
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犬地卷[Peltigera canina(L.)Willd.]叶状体的光合速率与温度和湿度的关系 |
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Relations between Dynamics of High-salinity Water Masses and Formation of Fishing Grounds of Cutlass Fish in Winter Fishing Season
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高盐水体消长与冬季带鱼汛期渔场形成的关系 |
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Relationship Between Alfalfa Rust and Leafy Spurge ln North China.
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中国北方苜蓿锈病发生与乳浆大戟的关系 |
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Relationship Between Drusen and Senile Macular Degeneration
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眼底玻璃膜疣与老年性黄斑变性关系的探讨 |
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Relationship Between the Amount of Hibernation Eelworm and the Degree of Root-Knot
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越冬虫量与烟草根结线虫病危害程度关系的初步研究 |
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Relationship between Amount of Hibernation Eelworm and Degree of Root-Knot
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越冬虫量与烟草根结线虫病危害程度关系的初步研究 |
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Relationship between Growth Strain and Wood Properties and Forming Mechanism of High Growth Strain of Eucalyptus Uropphylla ×E.grandis Plantation
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人工林尾巨桉生长应变与木材性质关系及高生长应变形成机理的研究 |
