查询词典 half-life period

Add the resazurin sodium solution, mix, and place the medium in suitable vessels that provide a ratio of surface to depth of medium such that not more than the upper half of the medium has undergone a color change indicative of oxygen uptake at the end of the incubation period.

加入刃天青钠溶液，混匀，并将该培养基置于适当容器中，该容器应为培养基提供特定的面积－深度比，以使在培养期末表明氧气摄入的变色部分不超过培养基的上半部分。

The study results indicated: The growth and output of the Sabaigrass was in orderon condition that soil holding water ratio was between 70% and 80%. The segregatingbranch of Sabaigrass have not grow rapidly in the procreative period when the soilheld higher(90～100%) or lower water (40～50%), and in August the death ofsegregating branch appeared.The growth of laminae was also impacted, the quantityor length of laminae, even shorter than 80cm. Finally with the result that the outputdecreased evidently.In June, the nutrition blooms in this time, the growth ofsegregating branch of Sabaigrass was affected by the field waterlogging, the caudexand segregating branch were half less than in the normal condition.

如果土壤含水量过高(90～100％)和过低(40～50％)，龙须草整个生育期没有分蘖快速增长的现象，进入8月份，甚至还出现分蘖死亡的现象，叶片的生长也受到很大影响，叶片总数极显著地减少，叶片的长度缩短，长于或等于80cm的叶片根本没有，最终导致产量显著降低；尤其是在6月份龙须草营养旺盛生长的时期，大田淹水极大地影响龙须草的生长，抑制分蘖的发生，收获时龙须草的总茎蘖数只有正常的一半。

I have married for eight years, almost squabbling with my wife once a half mounth during the period.

我结婚八年了，在这期间几乎每隔半个月就会和老婆小吵一下。

Yili sales price is less expensive than the first half of Mengniu was 3 billion yuan, an increase in 2008 equity incentive amortization 274,000,000, subquality product recovery, the destruction will also increase costs during the period.

伊犁销售价格低于成本蒙牛上半年为3亿元，在2008年股权激励摊销2.74亿，不合格产品回收增加，破坏也将在此期间增加的成本。

Methods 23 cases of Nelsons syndrome operated in our department in last 19 years were analyzed retrospectively. The clinical features included increasing cutaneous pigmentation after bilateral adrenalectomy, markedly elevated ACTH level, pituitary adenoma in CT or/and MRI. Transsphenoidal surgery was done in 21 cases, transfrontal craniotomy in 2 cases. A follow-up period ranged from half a year to 9 years.

对我科手术治疗的23例该病病例进行回顾性研究，临床特点包括肾上腺切除手术后皮肤粘膜色素沉着，血ACTH水平升高，影像学检查发现垂体腺瘤，21例经蝶窦手术，2例经额开颅，随访时间从半年至9年。

I wrote the first draft and several revisions over a period of about a year and a half. Two more years of development followed, in which additional revisions were done by: Jeff Nachmanoff, Boaz Yakin, Doug Miro and Carlo Bernard.

我用了一年半的时间写初稿并修订，紧接着两年的发展中后续修订由Jeff Nachmanoff， Boaz Yakin（做过一些不太有名的电影）， Doug Miro and Carlo Bernard

In other words, half a minute in this period of time, the men are in fact put up with a huge pain.

就是说，在这半分钟的时间里，男人其实正在忍受着巨大的疼痛。

Less than a half minute remaining in the first period.

第一节比赛还剩下不到一分钟

In fact, they averaged a decline of a half of one percent during that same period.

事实上，在相同的时期，其平均下降了0.5%。

In fact, they averaged a decline of a half of one percent during that same period.

事实上，他们比同期下降了半个百分点。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。