查询词典 phototaxis

If the arboreous lamina such as oak of distant Dong Li, Mongolia, Mongolian oak is feed,tussah basically belongs to a plant with cupule division oak, because its have up gender, phototaxis two big characteristics, cannot put medium breed aquatics in special container like the silkworm so, can put in oak tree to assume office only its are collected by oneself feed a leaf, prevent a bird by artificial and responsible nurse, move silkworm (put to another tree again after leaf dispose of) etc.

柞蚕主要以壳斗科栎属植物如辽东栎、蒙古栎、槲等树木的叶片为饲料，因其有向上性、趋光性两大特征，所以无法像桑蚕一样放在专用容器中养殖，只能放在柞树上任其自行采食树叶，并由人工负责看护防鸟、移蚕(当树叶吃光后再放到另一棵树上)等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。