马铃薯

Potato breeding for late blight resistance was one of the earliest practices mankind used to combat plant pathogens by means of genetic improvement, but the disease has not been controlled by resistance breeding so far.

马铃薯抗晚疫病育种是通过遗传操作来抵抗植物病害的最早的人类实践之一，但至今收效甚微，从野生种导入的抗病基因在田间很容易失效。

The pH values of the leaf tissue juices of 9 potato varieties with two types of resistance to potato late blight were detected,5 of them with horizontal resistance and 4 with vertical resistance .

对马铃薯的5个水平抗性品系和4个垂直抗性品种的下部健康叶组织汁液进行pH值测定，并调查各品种晚疫病发病病级，分析组织汁液pH值与品种抗晚疫病相关性。

The results showed that the potato late blight displayed marked ascending trend,and the influence rate of potato late blight in the field was 3.543 7% per year.

结果表明：研究区域马铃薯晚疫病历年发病面积比例呈显著上升趋势，发病面积比例以每年3.5437%的速度增加。

P. infestans ranks highest in the evolutionary potential and it can easily mutate its Avr genes and thus overccome the only promising solution for late blight control is potato plants carrying corresponding R genes.

致病疫霉菌是一种进化潜力非常高的病原，可以快速突变本身的非毒力基因，因而造成对应的马铃薯抗病基因的失效。

It is true that we have not studied the newspaper as the biologists have studied, for example, the potato bug.

我们确实没有象生物学家研究马铃薯的疾病那样研究过这张报纸。

And on the under side of the leaf of the potato vine are the bright orange eggs of the potato bug.

而在土豆藤叶片的另一面，马铃薯甲虫金黄色的虫卵在闪闪发光。

Amin believes there is no corcer of the world that can resist the charms of a Frito-Lay potato chip.

Amin 不相信世界的某个地方会抵挡住Frito-Lay马铃薯晶片的魅力。

Spence, a professor of experimental psychology at Oxford University in England, found that potato chips —"crisps" to the British — that sound crunchier taste better.

斯宾塞是牛津大学实验心理学教授，他发现马铃薯片（英国人叫做crisps，美国人叫做potato chips——译者注）嚼起来声音更清脆的吃起来也更好吃。

Me? need i remind you of the potato sack race incident of '98?

我要不要提醒你一下 98年的马铃薯双脚套袋赛跑？

I ' ll have a hot dog with potato salad, please.

我想要一个热狗，还有马铃薯沙拉。

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