having no justifying cause or reason; "a senseless, causeless murder"; "a causeless war that never had an aim"; "an apparently arbitrary and reasonless change" 同义词：causeless,
not endowed with the capacity to reason; "a reasonless brute"
not marked by the use of reason; "mindless violence"; "reasonless hostility"; "a senseless act" 同义词：mindless, senseless,
例句与用法
1.
However , a series of ecologically maladjusted problems emerged because of the massive lop and reasonless utilization of vegetation in recent decades 但几十年来，该地区植被的大量砍伐和土地的不合理利用引起了一系列生态恶化问题。
2.
Reasonless economic activities of human beings , such as over - reclamation , overgrazing , denudation , misuse and gouging , trigger and accelerate land desertification , which are only the exterior causes of land desertification 摘要人类不合理的经济活动，如滥垦、滥牧、滥采、滥伐、滥用等触发并加速了土地荒漠化的进程，但这只是制约土地荒漠化的外在机制。
3.
And a solve scheme is presented , controlling the voltage of 220kv power network in chongqing under 232kv during low load period . with the increase of load and power supply , the reasonable positions and capacitance of reactive power compensation become reasonless 随着负荷的不断增加，电源亦随之大幅度增加，使得原网络中本来合理的补偿位置、补偿容量变得不合理，因此有必要重新选择补偿点。
4.
Resource and energy over exploitation and consumption make serious bad influence on environmental protection and ecological balance . due to obvious supplies and demands , high cost , low price and reasonless configuration , most of ferroalloys factories don ’ t reach design production and have little profit and under instauration 且低水平重复建设严重,导致铁合金产品严重供大于求,产品结构和生产厂家布局不合理的矛盾日渐突出,资源、能源过度开发和消耗,对环境产生严重影响。
5.
Thesis point out : agricultural product market information system construction lag behind on market for farm products construction , scale of market for farm products , institutionalized degree low grade factor influence market for farm products collecting and distributing and transmitting the function to information relatively . agricultural product stronger in price fluctuation , dependence and a low one getting dispersed , in the forming process of and the price of agricultural product : basic price form with market , producing area price can reflect person who consume - price etc . factor weaken price direction function of information . agricultural product supply and marketing chain does not cooperate in the play chess state that caused inside system reasonless behavior of participant and feedback mistake of message understand 指出：农产品市场信息体系建设滞后于农产品市场建设、农产品市场的规模化、制度化程度较低等因素影响了农产品市场对信息的集散和传递功能；农产品价格较强的波动性、相关性和较低的离散性，以及农产品价格形成过程中：基础价格形成与市场之外、产地价格不能反映消费地价格等因素弱化了价格信息的导向功能；农产品供销链的非合作博弈状态造成内部参与者的系统非理性行为和对反馈信息的错误理解。
6.
Technicans are trying to find out a more reasonable point to describe work state of pump for some reasonless factors of this model , the key technology of developing ads is on adopting a means by using theoretical calculation and curve fitting to build a reasonable pump state graph model , the model " s rationality based relations between pump efficacy and sinking depth is illustrated by restrict programme argumenting 抽油增效辅助决策系统的开发，其关键技术在于采用理论计算及曲线拟合的办法，建立合理的泵况图模型，通过严格的方案论证阐明基于泵效-沉没度关系的泵况图模型的合理性。通过实际数据，检验模型的有效性。
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