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通过样地调查与土壤理化分析相结合对阿尔泰山南部山区的土壤特性进行研究,确定该区域主要的土壤形成特征有有机物质积累特征,粘化特征,钙积特征,盐积特征和相应的化学组成及粘土矿物特征;按土壤发生学分类将主要土壤类型划分为9个土类,从高到低,形成较为完整的土壤垂直谱,并比较了东西部差异;该区域具有温带荒漠草原土壤...
Key findings from the review of literature published between 2000 and 2015 include: a small proportion of young people view violent pornography or online child abuse images; the likelihood of viewing indecent images of children (IIOC) appears to increase with the frequency in which young people vi...
The axial preference of the oxide in thiane 1-oxide and of the imide in thiane 1-(N-tosyl)imide is reversed in the presence of a 3,3-dimethyl group, because of the syn-axial interaction. In protonated 3,3-dimethylthiane, however, the 1 proton persists in the axial position, despite ...
Many public utilities offer a choice between time-of-use and flat rates. Two points are established: (1) optional TOU (time-of-use) schedules exist that Pareto dominate both mandatory flat and mandatory TOU rates; but, (2) optional TOU prices based on marginal costs can be welfare-decreasin...
A theoretical discussion is presented of the influence of pupil size on visual resolution of an eye. Since the contrast-transfer function of the eye has a cut-off spatial frequency that is a function of the pupil diameter, even an aberration-free eye in perfect focus has a resolution limit....
ShowYoung秀漾智能提拉紧肤仪S350 智能手机（App检测）红光嫩肤抗皱光头 洁面乳、精华 蓝光祛痘净肤光头 基础功能 1 首先保证仪器是否充满电。S350使用USB接口充电，有配数据线，与安卓通用。“on/off” 键是开关，长按3秒就能开机或关机。打开后美容仪会发出“滴、滴”声，提示仪器正在正常运作。2 “power”键是档...
1.普通硅酸盐水泥:适合用于一般的倒板施工,比较常用,价格较低,适用于住宅、商业楼等不需要特别高要求的地面。 2.高性能混凝土专用水泥:适用于高要求的商业、工业建筑的地面,防水、耐久性强,价格较高。 3.超高性能混凝土专用水泥:适用于高速公路、机场、码头等对地面要求极高的场所,高强度、高耐久性、高抗渗性,价...
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丽水市中医药学会针灸推拿分会委员,丽水市物理学和康复学委员。从事于针灸,推拿,康复临床工作35年,擅长利用小针刀,针灸推拿正骨等技术治疗颈肩腰腿痛及中药,埋线等多种中医适宜技术调理亚健康及多种内科杂病,中风,偏瘫,眩晕的康复治疗。 姓名:虞雅云 科...