性比(sex ration)——性比是种群中雄性个体和雌性个体数目的比例。 受精卵的♂/♀大致是50:50,这叫第一性比。 由于种种原因,♂/♀比继续变化,到个体成熟时为正的♂/♀比例叫第二性比。 最后还有充分成熟的个体性比,叫第三性比。 性比对种群配偶关系及繁殖潜力有很大的影响。
放射性比度 [核] Specific activity ; SA ; specific radioactivity ; radioactivity specific
初级性比 [遗] primary sex ratio
流动性比率 [会计] liquidity ratio ; LDX ; Hui-Heubel Liquidity Ratio ; DerivativeLiquidityRatio
线性比例 Linear Scale ; linear scaling ; lts ; Linear r Scale
蛤异性比 anisotropy ratio
二向色性比 dichroic ratio
理想的流动性比率 Idealliquidity ratios
活性比 [地质] activity ratio ; Ratio activity
放射性比活度 specific activity ; radioactivity specific activity degree ; specific radioactivity
In this paper we discussed the reasons for the change in sex ratio from 3 female : 1 male to 5 female : 1 male from the triploid female silkworm which is generated from a tetraploid female silkworm.
解释了过冷却处理诱发的四倍体后代三倍体蚕发生性比从3:1向5:1变化的现象。
参考来源 - 家蚕多倍体细胞遗传学研究·2,447,543篇论文数据,部分数据来源于NoteExpress
创造力和独创性比专门技术更为重要。
Creativity and originality are more important than technical skill.
如果捕食者来了,40条鱼成为午餐的可能性比10条鱼小。
If a predator comes, a fish in a group of 40 is less possible to become lunch than a fish in a group of 10.
有时,准确性比在一秒钟内获得数百万条结果更为重要。
Sometimes accuracy is more important than getting millions of results in a second.
So, if we compare the sulfur to the oxygen, the oxygen it turns out is more electronegative and that is what holds the negative charge in this molecule.
因此,如果我们来比一下硫和氧,氧应该有更高的电负性,而在这个分子中它确实有负的电荷。
In fact, you're just a bit better than chance but you are better than chance at telling sexual orientation.
但你猜对的几率只比碰运气好一点点,猜对性取向的几率要比碰运气好一点点。
Now that seems counterintuitive now because we think that a plant based diet may be more healthy for people than a meat based diet, but remember, that we're fighting off overnutrition and these folks were fighting off undernutrition.
现在看来似乎并非如此,因为我们认为,对于人类来说,植物性饮食比以动物性饮食更为健康,但是请记住,我们正在对抗营养过剩,而这些人们正在和营养不良作斗争
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