fertilization

After 37 years of age, a child ready to Iliescu, Romania, but was not allowed to in vitro fertilization.

37岁后，伊利埃斯库准备要一个孩子，不过当时罗马尼亚不允许试管受精。

A minute structure in seed plants, containing the embryo sac and surrounded by the nucellus, that develops into a seed after fertilization.

种子植物的一个小的结构，含有胚囊并被珠心所包围，施肥后长成种子。

There has been a great deal of cross-fertilization of ideas and techniques between these methods.

这些方法在思想和技术上有着广泛的交流。

In the course of a man's life, most of his sperm cells are ejaculated under conditions that offer no chance for a fertilization.

男性一生中，绝大多数的精子在无受精机会的情形下被射出。

For couples who have trouble conceiving, in vitro fertilization (IVF) is often the last resort.

对于受孕困难的夫妇，体外受精（试管婴儿）经常是最后的希望。

The work did not spring planting, summer irrigation without fertilization, the rich will not have the fruits of the fall of many!

没有春的耕耘播种，不经夏的浇灌施肥，怎会有秋的丰硕果实累累！

In fact, any culture that encourages in vitro fertilization? has no right to complain about a market in embryos.

坦白说，一种文化，假如鼓励试管婴儿业，就没有资格抱怨胚胎市场的出现。

Surgery is one of the treatment options; however, if patients failed to conceive after surgery, in vitro fertilization (IVF) is effective.

外科手术是一种治疗的选择，因此患者在外科手术失去效用后，体外受精还是有效的。

Indeed, all of these works illustrate a sort of ongoing historical imbalance in cultural cross-fertilization .

确实，这些例证表明了各种不同的古老而富饶的文化在体现出的历史意义上的不平衡。

Following fertilization the endosperm becomes and remains multinucleate for some time , becoming cellular near the time of pit- hardening .

受精以后，胚乳变成多核，并继续存在一个时期，近硬核期时变成细胞状。

During in-vitro fertilization, doctors often implant several embryos at once into a woman's womb.

在胚台植入受孕时，医生们通常一次植入数个胚胎到女性的子宫里。

and that of fertilization birch branchlet was bigger in the late, which was able to adapt to a longer period of drought.

而施肥处理的白桦幼苗在胁迫末期导管比量较大，能适应较长时间的干旱。

The carbon sources utilization ratios of manure application were similar to that of inorganic fertilization combinated with manure. 2.

单施有机肥和有机无机配施的红壤微生物对碳源利用率相似。

There was the significant effect of the different amount of P and K-fertilization on the mustard nutritional quality.

不同磷钾肥施用量对雪里蕻营养品质的效应影响很大。

Many forest tree species have multiple archegonia which , after fertilization produce a number of proembryos .

许多林木树种都有颈卵器，受精以后便产生许多原胚。

As technological load of dynamic balance, CRF will promote balanced fertilization up to new level. China is exploiting new ap. . .

控释肥作为动态平衡的技术载体，将使平衡施肥提高到新的水平。

The process that allows a man's DNA to fold up in sperm and then unfold again after fertilization may become compromised.

承认男性的DNA链在精液里时折叠着而授精后重新打开这样的过程可能是折衷的看法。

Oceanic iron fertilization is one of many proposed, planet-scale engineering solutions to climate change.

用海洋铁为肥料是全球范围内有计划的对付气候变化的计策之一。

He could effect cross- fertilization between them .

他可以实现它们间的杂交授粉。

however, if it achieves the low light level, the grass production can be increased by fertilization.

冠层间隙光透射水平较低时，可通过施肥来提高产量。