碳氮比值 的英文怎麼說
中文拼音 [tàndànbǐzhí]
碳氮比值
英文
carbon nitrogen ratio-
The understanding of biogeochemical cycle of hydrogen, oxygen, carbon, nitrogen, and sulfur elements in nature ecosystem have increased substantially in the past two decades owing to the improvement of gas isotope ratio mass spectrometer and the wide application of isotopic studies with these elements
摘要近20年由於氣相同位素比值質譜儀的改良和氫、氧、碳、氮和硫等穩定同位素的廣泛研究，穩定同位素的研究技術已實質增加我們對于這些元素在自然生態系中生地化循環的了解。To let more domestic relevant researchers understand the applicable techniques of stable isotopes, this article not only introduces the principles of isotopes measurements by gas isotope ratio mass spectrometer, but also integrates the experiences of hydrogen, oxygen, carbon, nitrogen, and sulfur isotopes in agriculture and environmental applications that were described in papers
為讓國內更多相關研究人員了解穩定同位素技術的可利用性，本文描述氣相同位素比值質譜儀之分析原理，及整理氫、氧、碳、氮和硫等同位素在農業及相關生態環境研究上應用的文獻。There are higher potassium and calcium carbonate content, larger ph, lower organic matter, nitrogen and phosphoric. compared sandy soil with zonal soil, mechanical composition is coarsal, there are no substance leaching. 3
土壤鉀素、碳酸鈣和ph值較高，有機質和氮、磷養分貧乏，風沙土與地帶性土壤相比，機械組成明顯粗化，物質未發生淋溶淀積。Studying on the effects of nitrogen sources, carbon sources and other influence factors has optimized the lipase fermentation conditions for the strain. the optimal medium composition for the lipase production is ( % ) : yeast extract 1
對菌株lz1進行產酶條件優化研究，發現碳源和氮源的種類，碳氮源比值以及細菌發酵的初始ph值對酶產量影響最大。Standard test methods for determination of mass fraction of carbon, nitrogen, and oxygen in silicon nitride powder
測定氮化硅粉末中碳氮氧的質量比值的標準試驗方法分享友人