nano2造句

• Sodium nitrite and sodium chloride decrease the abrasion resistance of concrete , and other salts have little effect on the abrasion resistance of concrete
  对于耐磨性,掺有nano2和nacl混凝土的耐磨性稍有降低,其它混凝土的耐磨性基本不变。
• Most of the common nitrogen source could be used by cds - 1 except nano2 & carbamide , but organic nitrogen source was better than inorganic nitrogen source in supporting the growth of cds - 1
  该菌可以利用多种常用的氮源物质，但是不能利用nano _ 2与尿素；对有机氮的利用要明显优于无机氮。
• Sodium sulfate can decrease the compressive strength of concrete but increase the flexural strength . sodium nitrite can decrease the compressive strength of concrete but increase the flexural strength obviously . calcium nitrite can increase the compressive strength of concrete and decrease the flexural strength
  掺入na2so4后混凝土的抗压强度降低但抗折强度有所提高;掺入nano2后混凝土抗压强度降低但抗折强度有很大提高;掺入ca ( no2 ) 2后混凝土抗压强度基本不变但同时也降低了抗折强度;而掺入nacl后混凝土抗压强度有所降低,抗折强度稍有提高。
• In bioconversion of a d - amino acid and its derivative , the substrate , 5 ' - monosubstituted hydantoin is firstly transferred into an intermediate , d - carbamyl amino acid by d - hydantoinase , and in turn into an optically active d - amino acid by either d - carbamoylase or chemical , nano2 . nowadays , the bioconversion of d - amino acids has been industrialized by enzymes , so called one - step process
  D -型氨基酸及其衍生物的生物转化，经历两个反应历程，首先是在海因酶的作用下，催化5 -单替代海因形成氨甲酰类氨基酸中间物，后者再在酶或化学的作用下，生成相应的光学活性氨基酸或其衍生物。