因为大多数有机体没使矿物化，我们在地质的过去的生物多样性的感觉不完全、偏导骨骼和因此有的很少化石化碰巧。这特别指浅水的海洋......

A series of azobenzene containing side-on liquid crystalline ABA triblock copolymers were investigated.This triblock ser......

采用悉生培养微缩体系，探讨了不同土壤含水量条件下，华美新小杆线虫（Caenorhabditis elegans）对枯草芽孢杆菌（Bacillus subtilis）数量和......

研究了鲍鱼幼休培育阶段中采苗板上附着猛水蚤和线虫的数量变化.12-2号池猛水蚤的密度为0.02～5.5个/cm,平均密度为1.8个/cm;12-10号......

Climate change affects air temperature,sea levels as well as the soil and its ecosystem.The Guinea Savannah and Semi-dec......

Iran is an active seismic region and frequent earthquakes and because of the active faults, often leads to severe casual......

本文将乙基纤维素－乙酸、ＥＣ－间甲酚溶液膜在液晶态下长时间静置，在非取向膜中得到条带装饰的丝状向列织构，用偏光显微镜观察到向错强度Ｓ＝１／２和......

研究在在 Aphelenchoides besseyi 和小谷物和直立的圆锥花序的症状之间的关系上被做。这是在江苏省的重要米饭疾病，中国。A。besse......