...；在细胞免疫方面，维生素A缺乏会影响机体非抗原系统的免疫功能，如吞噬作用、外周血淋巴细胞的捕捉与定位、天然杀伤细胞（NKC）的溶解、白血球溶解酶活性的维持等。
基于310个网页-相关网页
NKC activity in every group were significantly lower than control group expected carcinoma of colon group(P<0.05, P<0.01).
各组NKC活性均有下降，除肠癌组外其余各组均显著低于对照组（P＜0．05，P＜0．01）。
Synthesis of dimethyl succinate from succinic acid and methanol on cation exchange resin NKC-9 was studied under adsorption dehydration with 3A zeolite adsorbent.
以阳离子交换树脂NKC-9固体酸为催化剂、丁二酸和甲醇为原料，采用分子筛吸附脱水技术合成丁二酸二甲酯。
Ethanol and tert-amyl alcohol were employed to synthesize tert-amyl ethyl ether in the liquid phase at atmospheric pressure. The strong acid cation exchange resin, NKC-29, was used as catalyst.
用国产NKC-29型强酸性阳离子交换树脂为催化剂，在常压液相条件下用乙醇和叔戊醇为原料合成了乙基叔戊基醚。
应用推荐