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ph
ph (disambiguation)

ph -- 呼吸接触
ph -- inhalation exposure

ph：人口和住房普查
ph : population and housing census

水解半衰期 ph 5
persistence hydrolysis t1/2 ph 5

ph 8.5：170天
ph 8.5: 170 d

ph = 最小试验压力(巴)
ph = minimum test pressure (in bar)

ph 7：20°c时4.93克/升
ph 7 : 4.93 g/1 at 20°c

ph 9：dt50 = 102-130天 (数次测试)
ph 9: dt50 = 102-130 d (several tests)

不可测，离解常数在 ph 2.6至ph 12.2之间
dissociation constant not measurable, constant between ph 2.6 to ph 12.2

ph 7：dt50 = 247-356天，与缓冲液有关
ph 7: dt50 = 247-356 d, depending on the buffer

在水中：ph 5：20°c时5.29克/升
in water: ph 5 : 5.29 g/l at 20°c

第1行：在 "正常水 "之后增加 "ph 7和正常氧气浓度 "。
line 1: add after normal water (ph 7 and normal oxygen concentration) us

ph 9：20°c时4.95克/升（有效分解）
ph 9 : 4.95 g/l at 20°c (significant decomposition)

(f) 以巴为单位的试验压力，前加字母 "ph "、后加字母 "bar "。
the test pressure in bar, preceded by the letters "ph " and followed by the letters "bar ";

hh: mm: ss ph: mm: ss ampmsome reasonable date formats for the language
hh: mm: ss ph: mm: ss ampm

ph值
ph