The cold weather had most deleterious consequences among the chrysanthemums.

寒冷天气对菊花产生了极有害影响。

The deleterious ingredients in gas emission of sculpturing organic glass were studied,using gas chromatography-mass spectrometry coupled with 3-step preconcentrator.

研究了3阶段预浓缩气相色谱-质谱法检测有机玻璃在雕刻过程中排放有害气体组成。