crust n. 1.面包皮 (opp. crumb);干面包片;生活口粮,糊口之资。 2.外皮,壳;〔美国〕雪壳;【地质学;地理学】地壳;【动物;动物学】甲壳;【医学】痂;(酒等的)浮渣;水垢。 3.(事物的)皮相,外表,表面。 4.〔美俚〕老面皮,厚颜无耻,没礼貌;(人的)脑壳。 crust movement 地壳移动。 earn one's crust 挣钱糊口。 have a crust 〔美俚〕脸皮太厚;太大胆,太鲁莽,太冒失。 the upper crust 〔古、俚〕上层社会。 vt.,vi. 用外皮覆盖;结成硬皮;生痂儿。 The snow has crusted over. 雪在地上结成冰壳。
Explorative study on short - range exploration method for deep - sea cobalt crust tiny terrain 一种深海钴结壳微地形近程探测方法的探索研究
Exploration method for tiny terrain of seabed cobalt crust based on energy relativity search 基于能量相关搜索法的海底钴结壳微地形探测方法研究
To strip it from sea - bed rock and transport it to seabank , it is necessary for us to understend the friability of cobalt crust 欲将结壳从海底基岩上剥离并采出海面,必要弄清钴结壳的破碎特性。
Abstract : sea - floor cobalt crust is rich in such metals as mn , co and ni , and has been one of recently - exploited and investigeted mineral resources 文摘:海底钴结壳富含锰、钴和镍等金属,是人类近期勘探和开采研究的热点之一。
For this reason , protodrakonov scale of hardness of the cobalt crust is measured by impact crushing test and factors affecting its crushability are analysed , providing the basis for designing crushing devices 为此采用冲击破碎试验法测定了钴结壳的普氏系数,并分析了影响其破碎强度的相关因素,为将来结壳破碎装置的设计提供了依据。
The authors use a ultrasonic transducer emit ultrasonic to simulated seabed tiny terrain , then analyze and calculate the relativity of amplitude according to the time , phase and amplitude etc included in echo signal and making using of the relativity of amplitude characteristics , at last gain the real - time altitude data of tiny terrain for deep - sea cobalt crusts mining in order to provide the parameter of best cutting depth for the intellectualized mining of excavating head 摘要通过超声波换能器向模拟海底微地形发射超声波,根据回波信号包含的时间、相位和幅度等信息,利用幅度特征相关性进行分析和计算,得出深海钴结壳开采所需要的实时微地形高程数据,为采掘头智能化开采提供最佳切削深度参数。