烧断

Many researchers have investigated the influence of AMF on vacuum arc. And most of them point out that uniformly distributed AMF is preferable. However, at higher current even under very uniform AMF, vacuum arc still tends to constrict, which will result in the failure of break. Further more, very strong uniform AMF has some disadvantages also.

非均匀纵向磁场对真空电弧控制机理的研究纵向磁场可以使真空电弧在大电流时维持在扩散态，减轻了电弧对阳极和阴极的烧蚀，从而提高了真空开关的极限电流开断能力，因此在真空开关领域得到了广泛的应用。

One drop of blood, one single drop, came out of the white feathers of the angel's wings and fell upon the ship in which the prince sat, burnt into it, and weighed upon it like thousands of hundredweights, dragging it rapidly down to the earth again; the strong wings of the eagles gave way, the wind roared round the prince's head, and the clouds aroundwere they formed by the smoke rising up from the burnt cities?

有一滴血唯一的一滴血从那雪白的翅膀上的羽毛上落下来，落在这位王子乘坐的船上。血在船里烧起来，像500多吨重的铅，击碎了这条船，同时把这条船沉沉地压下来。那些鹰的坚强的羽毛都断了。风在王子的头上呼啸。

One drop of blood, one single drop, came out of the white feathers of the angel's wings and fell upon the ship in which the prince sat, burnt into it, and weighed upon it like thousands of hundredweights, dragging it rapidly down to the earth again; the strong wings of the eagles gave way, the wind roared round the prince's head, and the clouds around—were they formed by the smoke rising up from the burnt cities?

鼓楼恶的王子就马上向他射出几千发子弹；不过子弹像冰雹一样，都被安琪儿光耀的翅膀撞回来了。有一滴血——唯一的一滴血——从那雪白的翅膀上的羽毛上落下来，落在这位王子乘坐的船上。血在船里烧起来，像500多吨重的铅，击碎了这条船，同时把这条船沉沉地压下来。那些鹰的坚强的羽毛都断了。风在王子的头上呼啸。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。