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An interview guide entitled,"Maternal Perception of the Onset of Lactation" was also used to obtain milk secretion data. The analytical results revealed a mean onset of lactation of 75.7±16.8 hours (range=40 to 117). The prevalence of delayed lactation onset was 50.5%(n=58); 64.3%(n=42) were primiparous, and 41.9%(n=74) were multiparous. Parity, hours of withholding oral intake post-operation, and use of formula were significant predictors of perceived lactation onset. These factors explained 22.5% of perceived lactation onset in postpartum women who planned cesarean section.

研究结果发现：(1)泌乳起始时间的平均值为757±168小时（范围40至117小时）；(2)产妇自觉延迟泌乳的发生机率为500%(n=58)，其中延迟泌乳的初产妇有27位，占所有初产妇(n=42)的64.3%，延迟泌乳的经产妇有31位，占所有经产妇(n=74)的41.9%，经产妇发生延迟泌乳的机率较低；(3)产次、术后禁食时间以及配方乳使用，是泌乳起始时间的重要预测因子，共可解释计画剖腹产妇泌乳起始时间总变异数的22.5%。

In obese mice, treatment with bupropion, naltrexone or the combination resulted in a 27%, 49% and 94% reduction of food intake, respectively.

在肥胖小鼠，治疗与安非他酮，纳曲酮或结合导致了27 ％， 49 ％和94 ％，减少食物的摄入量，分别为。

In lean mice, treatment with bupropion, naltrexone or the combination resulted in a 34%, 67% and 77% reduction of food intake, respectively.

精益小鼠，治疗与安非他酮，纳曲酮或结合导致了34 ％， 67 ％和77 ％，减少食物摄取量，分别为。

Vertical, 4-stroke water cooling, direct injection, natural intake

形式…………………直立，4冲程水冷，直喷式，自然吸气

The intake of 3 grams Niacin for as little as two weeks can reduce serum cholesterol by 26 percent.

摄入3克烟酸的只有两个星期可以降低血清胆固醇百分之二十六。

Students with sufficient intake of niacin and selenium exceeded 85%, that of protein was 50%, and the source was better.

烟酸、硒摄入充足的占85%以上；蛋白质摄入充足的占50%，但来源较好。

At partial load, up to 50 % of emissions are recirculated through the air intake in order to reduce nitrogen oxide emissions.

在部分负荷，高达50 ％的排放量循环通过空气摄入量，以减少氮氧化物的排放量。

The measures of prevention from N-nitro so compounds on the human health risk are mainly to reduce nitrosamines and its precursor nitrate and nitrite, and reduce nitrosamine intake and block the synthesis of it in vivo.

预防N-亚硝基化合物对人体健康的危害主要是：减少亚硝胺及其前体物硝酸盐及亚硝酸盐的摄入和阻断亚硝胺在体内的合成。

This system can perform the calculation of the Maximal oxygen intake (VO2max) of a person by the Astrand's nomogram and the calculation of PWC170 parameter.

人的运动能力主要取决于人在运动中心脏和肺向血液及全身供氧能力及其做功能力。

Lipids are an energy-dense source of fuel calories (~~9kcal/g) compared with proteins and carbohydrates(both ~~4 kcal/g).It is generally recommended in clinical practice that the lipid supply should provide 15-30%of the total calorie intake,or 30-50%of nonprotein calories.

与蛋白和碳水化合物相比，脂肪乳脂质的能量密度更大(≈9 kcal/g比≈4 kcal/g)，所以在临床上普遍推荐脂质供能应占总热量的15-30%，或非蛋白热量的30-50%。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。