slow reacting substance-a slowly reacting substance a
Related Translations:
迟缓: slow; tardy; sluggish 短语和例子进展迟缓 make slow progress; 行动迟缓 act slowly; 双方的谈判因为他们的缺席而迟缓下来。 the progress of negotiation between the two sides has slowed down owing to their absence.; 迟缓点火状态 ha
