He took a shovel, dug a hole, and buried his once-prized possessions...他拿起一把铁锨，挖了个坑，将自己曾经珍爱的物品埋了起来。He could see their wide, flattened, shovel - pointed heads now and their white tipped wide pectoral fins.他这时看得见它们那又宽又扁的铲子...
* 2千瓦的电炉a 2kW electric fire年用电量平均为每小时500千瓦.It's about 500 kilowatts per hour on average.我们有一台三百千瓦的事故备用发电机.We have an emergency - standby electric generator with a capacity of 300 kilowatts....
Sitting on chair, two legs paralleling, tip toe pointing front.坐在椅子上, 两腿平行, 腿尖指向前方. 左腿向胸前抬起,两手紧抱小腿,往怀里拉.Often there are emotional reasons paralleling the financial ones...往往情感方面的原因和经济方面原因同时存在。Briefly Andrew sketched out ...
Electrophoresis is a technique that separates macromolecules according to their net electrical charge and shape.电泳是根据分子的静电荷和形状分离大分子的技术.Methods: Cross electrophoresis of agarose - starch mixed gel was used in these experi...