英语词汇“trace element”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

trace element n. an element that is present (esp. in the soil) or required only in minute amounts; also figurative.

ΚΠ

1932 Yale Jrnl. Biol. & Med. 4 501 Investigation as to the occurrence and function of ‘trace’ elements in both plant and animal life is now very active.

1954 R. L. Parker tr. P. Niggli Rocks & Mineral Deposits i. 9 Fundamental rock chemistry need consider only comparatively few elements... This does not mean that relatively rare elements or even the so-called trace elements lack importance.

1970 Nature 17 Oct. 251 Trace element analyses of flint show statistically valid differences between products of major British and European Neolithic flint mines.

1976 Church Times 16 July 7/2 I found little that has not been said already by many radical Christian writers. There are trace-elements of Marxism, but hardly more than that.

单词	trace element
释义	> as lemmas trace element trace element n. an element that is present (esp. in the soil) or required only in minute amounts; also figurative. ΚΠ 1932 Yale Jrnl. Biol. & Med. 4 501 Investigation as to the occurrence and function of ‘trace’ elements in both plant and animal life is now very active. 1954 R. L. Parker tr. P. Niggli Rocks & Mineral Deposits i. 9 Fundamental rock chemistry need consider only comparatively few elements... This does not mean that relatively rare elements or even the so-called trace elements lack importance. 1970 Nature 17 Oct. 251 Trace element analyses of flint show statistically valid differences between products of major British and European Neolithic flint mines. 1976 Church Times 16 July 7/2 I found little that has not been said already by many radical Christian writers. There are trace-elements of Marxism, but hardly more than that. extracted from tracen.¹ < as lemmas
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> as lemmas