心算

What if he did not know how he might be interested in it abacus?

如果他什么也不知道，他怎么可能对珠心算有兴趣呢？

During these steps, some digits are selected for specific roles (e.g., first addend) in the addition operation, while the others are held in working memory, but not used in the current operation.

在这些心算步骤中，每个时刻只有一些数字被特殊地选择用于加法运算的被加数，而其他的数字则仅仅保存在工作记忆中并不用于当前操作。

The study explored how the two intervening methods,relaxation training and inactivity,influenced Heart-Rate variabilityunder mental arithmetic,and the difference among healthy people,depression patients with anxiety and depression patients without anxiety in terms of HRV.

探讨分别以放松训练和静坐两种干预方式对抗心算对抑郁症患者心率变异性的影响，以及正常人、单纯抑郁症患者和伴焦虑症状的抑郁症患者在心率变异性上的差异。

Compared with NC, schizophrenia patients showed decrease in mental arithmetic with eyes closed and number cancellation test.

正常组和精神分裂症组心算和数字划消测试中的D2分别为(4.49±0.60)υs (3.14±0.75)和(5.01±0.71)υs (4.51±0.75)(P.05， P.01)。

IE 7 has a little quirk of it's own not respecting bottom margin on children inside floated objects.

在非洲买东西付款时，当地人敲半天计算器，还不如我的心算来得快、来得准确。

He is known for familiar results in elementary geometry; for example, the Euler line through the orthocentre (the intersection of the altitudes in a triangle), the circumcentre (the centre of the circumscribed circle of a triangle), and the barycentre (the "centre of gravity," or centroid) of a triangle.

他作了很大努力来发展一个较完整的月球运动理论，它由於包含了三体问题而特别困难；在1753年发表的部分解答曾帮助了不列颠海军部对月球表的计算。1772年，通过艰钜的心算完成了他的关於月球运动的第二种理论。

The results indicated:1 Some cognitive performances decreased obviously with age,such as symbol-digit, visual digit span, auditory digit span,pairedassociation learning,free recall of picture and recognition of meaningless figure But other cognitive performances did not decrease with age, such as picture classific...

结果表明：（1）一些作业（符号数字、视觉数字广度、听觉数字广度、词对联想学习、图象自由回忆和无意图形再认）成绩随年老明显下降，另一些作业（图象分类、卡片分类、心算和矩阵填图）成绩不随年老明显降低；（2）再次验证心算、符号数字、数字鉴别和计数四项非词语性作业速度随年老进行性减慢。

A large set of regions in the frontal and parietal cortices was activated during mental calculation.

总体上，额叶和顶叶在心算活动中起着重要作用，而任务难度和年龄对心算加工时脑活动的影响以额中回区最为明显。

While bilateral area lying along the intraparietal sulcus showed decreased activity during arithmetic with disruption, which might be related to the impaired arithmetic processing in dual task.

反之，双侧沿顶内沟区在心算受到干扰后的激活却显著弱于无扰时的激活，这或许是由加干扰后无法很好地完成心算造成的。

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建校以以来，我校为河南省，南阳市珠心算事业的发展起到了巨大作用，为珠心算在南阳地区的推广做出了功不可没的贡献。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。