upper limit value中文什么意思

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In selecting the upper limit value , sufficient room shall be maintained
在選擇壓力表的上限值時(shí)應(yīng)留有充分的余地。
Generally , under the situation of steady tested pressure , the maximum working pressure shall not exceed 2 / 3 of the upper limit value of the instrument ; while in measuring pulse pressures , the maximum working pressure shall not exceed 1 / 2 of the upper limit value of the instrument ; and while in measuring high pressures , the maximum working pressure shall not exceed 1 / 3 of the upper limit value of the instrument
一般在被測(cè)壓力穩(wěn)定的情況下，最大工作壓力不應(yīng)超過儀表上限值的2 / 3 ；測(cè)量脈動(dòng)壓力時(shí)，最大工作壓力不應(yīng)超過儀表上限的1 / 2 ；測(cè)量高壓時(shí)，最大工作壓力不應(yīng)超過儀表上限的1 / 3 。

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