电键

It is this release of energy that maintains the arc often seen when a switch is opened in an inductive circuit.

在电感电路中，打开电键时，就有这种能量释放，引起经常所见的电

It stops when finishing singing for the first time, and it will begin to sing again if you press down the tapper.

把电键接在A、B之间，再接通开关，你就听到电动机在唱歌了吧，唱完一遍后就不唱了，这时你按下电键，它又会唱了。

Each letter of the alphabet, and numbers 0-9, is represented by a unique pattern of dots and dashes, which are transmitted electronically as short and long pulses by a person using a telegraph key.

每个字母和数字0-9 ，代表的是一种独特的模式点和破折号，这是电子方式传送的短期和长期豆类的人使用电键。

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。