projective cover中文是什么意思

發(fā)音:

中文翻譯
造句

射影覆蓋

projective adj. 1.投影的，射影的。 2.凸出的，突出的。 3 ...
cover vt. 1.覆蓋，遮蔽，包裹；戴帽子；包庇，隱蔽，掩蓋； ...
projective cover degree 投影蓋度
projective total cover degree 投影總蓋度
projective adj. 1.投影的，射影的。 2.凸出的，突出的。 3.【心理學(xué)】投射的。 the projective power of the mind 想像力。
direct projective 正射影變換
opposite projective 反向射影
periodic projective 循環(huán)射影
projective a-module 射影a模
projective abundance 投影多度
projective algebraic 射影代數(shù)的
projective astroid 射影星形線
projective blaming 投射性責(zé)備
projective capacitive 電容式
projective center 投影中心
projective change 射影變換
projective collineation 射影直射變換
projective cone 射影錐
projective conic 射影圓錐曲線
projective connection 射影聯(lián)絡(luò)
projective coordinate 射影坐標(biāo)
projective coordinates 射影坐標(biāo)
projective correspondence 射影對(duì)應(yīng)
projective deformation 射影變形
projective dimension 射影維數(shù)

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例句與用法

By using the projective covering method and projective covering probability , fractal and multifractal dimensions of different types of landform sueface above are computed . results show that all the studied landform surface are not simple fractals , but multi - range scaling fractals , and the fractal dimensions increase with the landform type from basin to mid - low mountain and high mountain . nevertheless , different type landscapes perform different dq - q curve shapes . which the dq value has the widest range in the high mountain type , the second one is the mid - low mountain type , and then the basin type
對(duì)不同時(shí)段地震形變場(chǎng)圖象多重分形特征的研究表明，震源區(qū)及近震源區(qū)強(qiáng)震前垂直形變圖象都出現(xiàn)信息維降低，多重分形譜曲線dq變陡，值域范圍變寬的特征，說明在強(qiáng)震前地殼垂直形變出現(xiàn)了局部化、不均勻性增強(qiáng)的行為，這些對(duì)地震預(yù)報(bào)都有重要的實(shí)際意義。

百科解釋

In the branch of abstract mathematics called category theory, a projective cover of an object X is in a sense the best approximation of X by a projective object P. Projective covers are the dual of injective envelopes.

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