pre-acidification alkalinity酸化: acidate; acidulate; acidize; ...以前: before; formerly; prior to; ...的: 4次方是 The fourth power of 2 i ...碱性: basicity; alkalinity; alkale ...以前的: erstwhile; fore; former; old; onetime; other; prev previous; prevenient; quondam; sometime; whilom下载手机词典可随时随地查词查翻译
