(AHAIR)、二羟基酸脱水酶 (DHAD)、支链酮酸脱 羧酶(KDC) 、醛脱氢酶 (ADH), 其中 ALS 既能催
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井下气体分流器( DHAD) 是一根钻杆或钻铤短节,一般在钻柱上配有两个喷嘴阀, 以便将部分钻柱内的气体分流至钻铤之上的环空。
He'd crouched beside her and told her not to feel bad - that he 'dhad to shoot the snake.
祖父就蹲在她身边,告诉她不要难过,他不得已射杀了那条蛇。
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He 'dhad five children already by his first wife (though four had died in infancy), and fatherhood was not on his mind.
他和第一位妻子已经有了五个孩子(不过四位夭折),但是他的心里没有父亲的概念。
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