We usually measure the strength of concrete at 28 days after it has been cast.
我们通常在混凝土灌注后二十八天测 定其强度。
According to the clew information of Baidu, this vocabulary entry is updated at 28 days.
根据百度的提示信息，此词条更新于28日。
The optimum mix and the main effect factor is determined by the strength at 28 days and verified by the regression strength at 90 days.
由28天强度确定了最佳配比和主要影响因素，用回归90 天的强度进行了验证。
According to a 2008 poll by the National sleep Foundation, 28% of the 1, 000 respondents said sleepiness interferes with their daytime activities at least a few days each month.
美国国家睡眠基金会2008年的调查结果显示，在1,000位受访者中，有28%的人表示瞌睡会影响他们白天的工作，每个月至少有几天会出现这种情况。
The patient experience two clinical rejection instances, at days 28 and 64, with the latter attack associated with a cytomegalovirus infection that was linked to the donor tissue.
患者在术后第28天和第64天分别出现一次临床排斥事件，后一次的发生由与供者相关的巨细胞病毒感染引起。
Participating pigeons shall be at the age of 28-40 days, banded with foot ring 2008 provided by Chinese Racing pigeon Association or foreign countries and regions.
所送参赛鸽必须是28 ~ 40天龄的赛鸽，必须佩带一枚中鸽协或所在国(地区)统一的2008年足环。
Results The control group showed normal fracture healing with histological evidence of bony fracture bridging by 28 days and mature bony remodelling at 63 days.
结果术后28天时的组织学检查结果显示对照组出现连接骨折部位的正常愈合过程，术后63天时具有成熟的骨性重组表现。
Each fall of one degree Celsius at any time of year is associated with 200 extra people having a heart attack within the next 28 days, according to a study in the British Medical Journal.
在一年中的任何时间，温度每下降一摄氏度，那么未来28天里就会有额外200个人患心脏病，英国医学研究杂志报道。
ALL months have at least 28 days.
十二个月每个都至少有28天。
A trip, or an overseas deal or one involving academia, will come to fruition at the full moon February 28 plus or minus four days.
一段旅程，或者国际合约或者和学术相关的东西，将会在满月的2月28号前后的4天开花结果。
Next, they gave a drug to induce cell division in the rats and examined their brains at intervals ranging from one to 28 days after the treatment.
其次，他们给予大鼠诱导分化的药物，在处理后1到28天间隔检测脑组织。
The Quantitative Myasthenia Gravis (QMG) Score for Disease Severity, a validated clinical composite scale, was calculated by a masked observer at baseline and days 14 and 28.
被设盲的观察者通过定量重症肌无力疾病严重程度评分系统这一被认可的复合标准来计算基础水平和14天、28天的评分。
Methods Plasma essential fatty acids (EFA)levels of cords and veins were analyesd in 28 preterm infants at deliveries and three days after birth respectively.
方法用毛细管气相色谱法测定了28 例早产儿出生时脐静脉血和生后第3天静脉血必需脂肪酸水平。
The 28-year-old belted out a portion of his new song from the album, titled 100 Days, to prove his recovery at a recent press conference.
在日前的一次记者会上，这位28岁的男人大声唱出新专辑《100天》中歌曲的一段来证明自己已经复原。
According to a 2008 poll by the National sleep Foundation, 28% of the 1,000 respondents said sleepiness interferes with their daytime activities at least a few days each month.
美国国家睡眠基金会2008年的调查结果显示，在1,000位受访者中，有28%的人表示瞌睡会影响他们白天的工作，每个月至少有几天会出现这种情况。
I would prefer you allow a few days space from that date, and wait at LEAST until the new moon, August 28, to do so, and it would be even better to wait a little longer.
我倡议从那天开始你还要再留出多少天的空间，至少等到8月28日的新月，再买那些东西，如果你能再略微等多点时间会更好。
As a result we offer an incredible opportunity to upgrade their package at any time during the first 28 days after enrollment and take advantage of the benefits.
因此我们提供了一个难能可贵的机会，让所有直销商都可以在入会28天后选择将套装升级，以及享受这项决定带来的所有益处。
Every month has at least 28 days...
每个月都至少有28天。
Every month has at least 28 days...
每个月都至少有28天。
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