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锶
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锶【医】 Sr strontium 锶(1)鍶sī(2)属于碱土族的一种银白色、软而且有延展性和韧性的二价金属元素,仅以组合物的形式、尤其是作为菱锶矿和天青石而存在,通常是由电解它的融熔的氯化物或者用铝加热还原它的氧化物而制得,在空气中变为淡黄,能产生使火焰和焰火组分染上绯红色的化合物 [strontium]――元素符号Sr
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be studious of doing sth
be studious to do sth
be subjected to
be subjected to severe tests
be subject to
be subject to fits of passion
be subordinate to
be subsequent to
be sucdked into the vortex of
be sufficient for
be suggestive of
be summoned as a witness
be sunk in deep thoughts
be superimposed on
be supposed to
be sure of
be sure of oneself
be sure that
be susceptible to
be suspected of
be suspicious of
be suspicious of sb
be suspicious of sth
be sustained by the faith in
be sweet on
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