查询词典 sperm

If a woman does not oulate there is no egg for sperm to fertilise and so she cannot become pregnant.

如果一位妇女不能排卵，那么就不能形成受精卵，也就不会怀孕。

Only using sperm that carry an X chromosome to fertilise the egg means only unaffected girls are conceived.

只选择带有X染色体的基因的精子进入卵子。也就是说生一个没有缺陷的女儿。

They are not sure why smokers produce fewer boys, but they suspect that sperm carrying the Y chromosome for male children may be more susceptible to the effects of tobacco which could make it less likely to fertilise the woman's egg.

他们无法确定，为什么吸烟者生男孩的可能性较小。但是他们怀疑，决定生男孩的携带y 染色体的精子更容易受香烟的影响，使其与卵子结合的可能性降低。

In fact, drake penises come in a wide variety of shapes and sizes that are thought by students of the subject to be part of an arms race to ensure that it is the owner's sperm that fertilise the next generation of ducklings, rather than anybody else's.

事实上公鸭阴茎的形状与大小各不相同，该方面的学生将这一现象想象成是某种军备竞赛以保证生出来的小鸭是自己的后代而不是别人的。

For the disease to occur, a sperm carrying the mutation (50:50 chance) must fertilise an egg carrying the mutation (50:50 chance).

为疾病的发生，精子进行基因突变（ 50：50机会）必须受精鸡蛋进行突变（ 50：50机会）。

The journey sperm undertake on their way to fertilise an egg has been likened to a human trying to swim a journey of several thousand kilometers.

我们可以把精子对于卵子受精的旅程形容为一个人试着游上千公里的的距离。

The blind passages make it likely that sperm will be ejaculated into the wrong place and thus fail to fertilise the duck's eggs.

憩室的作用则是让精液无法达到正确的地方来授精。

Sperm cells swim through the uterus towards the fallopian tube, racing to fertilise an ovum.

精子细胞游过子宫游向输卵管，抢占卵子。

If you have to have chemotherapy this may reduce your sperm count and cause fertility problems.

如果您必须有化疗，这可能降低您的精子计数和事业的生育问题。

This is the time when the sperm should arrive if a fertilization is to occur.

如果受精将要发生的话，这恰恰是精子应该抵达的时候。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐