additivity test的用法和樣例：
例句
- The test and assessment for the homogeneity of a certified reference material are introduced.
介紹標準物質(zhì)的均勻性檢驗及其評價(jià)方法。 - In the U.S., health care workers, and other employees that are required to wear respirators must do a fit test before wearing the respirator for the first time.
在美國，醫療機構內的醫護人員及在工作場(chǎng)所中使用呼吸器的其他雇員，在第一次佩戴呼吸器時(shí)，都必須進(jìn)行適合性檢驗。
