交配

Sea dragon "pregnancies" in captivity are rare because researchers don't know what gets them in the mood to mate.

在被俘虏时期怀孕的海龙是罕见的，因为研究人员不知道他们是在什么状态下交配的。

Sea dragon pregnancies are rare at aquariums because researchers don't know what gets them in the mood to mate.

水族馆内的海龙很少怀孕，因为研究学者并不了解什麼样的条件会刺激它们交配。

However, did you know that their own biggest predator is themselves? Over half of sand scorpions prey on scorpions and in many species the female consumes its mate, while in rare species the reverse is true.

但很少人却知道它们的最大敌人竟然是自己，超过一半的死亡雄性沙漠蝎子都是死于雌性配偶交配完成之后。

But they mate naturally and have more of a balance of dark and white meat.

但他们是自然交配的，且大腿肉和胸脯肉比例均衡。

They mate naturally and have more of a balance of dark and white meat.

它们是自然交配，胸脯肉和大腿的肉的比例也更均衡。

But they mate naturally and have more of a balance of dark and white meat.

但他们自然交配，鸡腿鸡脯的比例更加平衡。

In addition to the direct transmission between plant and whitefly, geminiviruses can also be transmitted through mating and oviposition among whiteflies.

双生病毒除了在植物与粉虱之间直接传播外，还可通过烟粉虱交配及经卵携带的途径在烟粉虱个体和代别间进行传播。

Major new findings of this study:(1) We developed a cost-effective,efficient,and reliable video recording system for observing and recording the mating behaviour of whitefly on live plants.With this novel system,a large number of accurate and continuous recordings of courting and mating behaviour of this insect can be made on live plants under more natural condition.

本研究的主要创新之处(1)首次自主设计组装了一套经济可靠的录像观察和记录装置，可连续几天详细记录烟粉虱成虫在活体植物上较自然状态下的求偶和交配行为。

For example, two players can gang up on the third to speed up elimination and two players must compete for the right to check mate the third.

例如，两位选手可以朋比为奸的第三次，以加快消除和两名球员必须争取交配权的第三次检查。

Because parrots have low reproductive success, a pair will typically produce only one clutch of two or three eggs a year.

由于鹦鹉的繁殖力低，一对交配成功的鸟儿通常每年只产下一窝，一到三个鸟蛋。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。