ph us 中文意思是什麼

ph us 解釋
states]美國藥典
  • ph : PH ＝public health 公共衛生。【化學】表示氫離子濃度的倒數的對數的符號。
  • us : pron 1 〈we 的賓格〉我們。2 〈詩、古〉朕 （＝ourselves）。3 〈口語〉〈用作表語〉我們 （＝ we）。4...
  1. Yingming technology jiangyan, jiangsu province, china is a speciallized manufacturer of electro - chemistry instruments. our main products are, ph - messer, salt meter, ph - mtre, ph truncheon meter, waterproof ph meters, " nutra wand " conductivity meters, mini tds meters such as ec, orp, cf, ppm, ppt, us cm, ms cm testers

    我司姜堰市櫻明花卉園藝有限公司是水耕栽培用肥料養液濃度計， ph計酸鹼計專業製造廠姜堰市江蘇行政區，
  2. While some scientists discount the existence of a sixth sense for danger, new research from washington university in st. louis has identified a brain region that clearly acts as an early warning system one that monitors environmental cues, weighs possible consequences and helps us adjust our behavior to avoid dangerous situations. " our brains are better at picking up subtle warning signs than we previously thought, " said joshua brown, ph. d., a research associate in psychology in arts and sciences and co - author of a study on these findings in the feb. 18 issue of the journal science

    雖然一些學者對人類也同樣具有「第六感」的這一說法並不認同，但是美國聖路易斯華盛頓大學的科學家日前經研究證實，人類大腦中確實存在著一個具有早期預警作用的特殊區域這個區域可以監控外界環境線索，同時衡量環境變化可能會給人體帶來的後果，並調解人們的行為以避免危險情況的發生。
  3. Perhaps, it is necessary for us to prolong experimental time and use more sensitive instrument in order to correctly evalunate soil micro - algae ' s effection to the increment of soil nitrogen. all in all, soil ph value, soil organic matter, soil available phosphorus and soil nitrogen are important indices, which are used to measure soil ' s quality

    （ 5 ）從理論上推測，土壤微藻的固氮作用必然會使土壤全氮量增加，但在90天的實驗期內的增加量尚不可測，可能需要更長的實驗時間和更靈敏的測試方法方可評估土壤微藻對增加土壤全氮量的意義。
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