指南针

Afterwards people discover the south North Pole characteristic of loadstone but invented mariner's compass.

后来 人们发现磁石的南北极特性而发明了指南针。

The artifact is part of a polished lodestone bar with a groove at one end.

这是1098-1100年间广州舟师的事；而1187年英吉利海峡就有指南针的使用。

11The lodestone can swing as a compass in the earth ' s magnetic field .

天然磁铁可以作为指南针在地球磁场中摆动。

If true, this "predates the Chinese discovery of the geomagnetic lodestone compass by more than a millennium".

确切地说，当伊斯兰世界有浮水式指南针的记载（13世纪后半叶）时，中国和欧洲都已有了旱罗盘。这对西传说很不利。

Without a compass , it is easy to lose one's bearings in the woods.

在森林中没有指南针是容易迷失方向的。

Lovell, surveyor's compass were not making a rich man then you can be embittered, malicious, witty, to the remaining part of western new york.

洛弗尔，验船师的指南针没有使富人然后你可以辛苦，恶意的，诙谐的，其余的部分西方纽约。

At age five, his father gave him a compass, it is an invisible target under the magnetic moment of the scene so he was surprised.

5岁时，父亲给了他一个指南针，指针在磁力的无形作用下转动的情景让他惊讶。

Do you know who invent magnetic needle ?

你知道指南针是谁发明的吗？

The iron in the ship caused a deviation of the magnetic needle of the compass.

在船的铁引起了指南针的磁针的一个偏离。

They also sensitive to the earth's magnetic field as a compass needle.

就如同指南针一样，有着灵敏的神经。

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。