Not known what type of material the chemical absorption, thus making them pick up materials.
ผลลัพธ์ (ภาษาอังกฤษ) 2:
Never knows what kind of chemical material, the material produced is not.
ผลลัพธ์ (ภาษาอังกฤษ) 3:
Don"t know what kind of adsorbent chemicals made a handful of materials is wrong