trace forms 中文意思是什麼
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The study covers regional geology, the physicochemical conditions of cu - ag polymetallic mineralization area, transport forms of copper and silver, the ore - forming geochemical mechanism of cu & ag, the geochemical characters of major element, trace element and lanthanon in mineralization field, the ore - forming age and geochemical mode, and so on
研究內容包括：區域地質和礦田地質，銅銀多金屬礦形成的物理化學條件，銅銀遷移形式，銅銀富集的地球化學機理，礦田常量元素、微量元素和稀土元素地球化學特徵，白秧坪銅銀多金屬礦田成礦時代和地球化學模式等。 -
Beginning with the formal definition of derivation set, this thesis finds the general laws of derivation set, proves the theorems about derivation set, proposes an approach for weak inversion and verification based on attribute mapping to trace data lineage, gives a series of arithmetic for data lineage tracing, describes the basic processes of data lineage, and then forms systematic theories and approach
作者從定義起源集入手，找出了起源集的一般規律，證明了有關起源集的定理，提出了一種「基於屬性映射的弱逆與驗證」的起源集跟蹤方法，給出了一系列有關起源集跟蹤的演算法，並設計了數據志跟蹤的基本過程，從而形成了一套系統的數據志跟蹤理論與方法。 -
This is remarkably curious as minerals and trace minerals are the very building blocks of all life forms
經過沖蝕及拙劣的耕種技術，已使土壤幾乎耗盡這些活性元素。 -
In addition, the asp. net page framework provides a trace mode that enables you to insert instrumentation messages into your forms
此外， asp . net頁框架提供使您可以將檢測消息插入窗體的跟蹤模式。
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