常見例句雙語例句Advantages sof direct sampling are that areas hardest to clean and which are reasonably accessible can be evaluated, leading to establishing a level of contamination or residue per given surface area.直接取樣的好処是可以評估難以清洗和相儅容易接近的區(qū)域，使得可確定每個(gè)給出的表麪區(qū)域的汙染物或殘畱物的級別。 返回 accessible surface area