查询词典 deciduous teeth

Leaves deciduous; petiole 3-4 cm, nearly glabrous; leaf blade ovate or ovate-oblong, 9-13 × ca. 8 cm, papery, abaxially densely rufous pubescent on veins, adaxially glabrous, base subcordate, margin doubly serrulate with adpressed acute teeth, 3-lobed; middle lobes triangular-ovate, apex acuminate; lateral lobes in upper part of blade, much shorter and apex acute.

叶脱落 叶柄3-4厘米，近无毛；叶片卵形的或卵状长圆形， 9-13 *长约8厘米，纸质，密被红棕色短柔毛在脉上，正面无毛，基部近心形，边缘重细锯齿具紧贴锐尖齿，3裂；三角状心形的中间裂片，先端渐尖；叶片的侧的裂片在上半部分，很多短和先端锐尖。

The stellate reticu-lum and the dental follicle of the underlying permanent tooth seems to be important for the deciduous root re-sorption. However, primary teeth without a permanent successor eventually exfoliates as well. Our current understanding on the underlying mechanisms is slim.

继承恒牙的牙囊和星网状层似乎在乳牙根的吸收中起着重要作用，而继承恒牙先天性缺失的乳牙根吸收最终仍会发生，其机制目前尚不明了。

Premature loss of deciduous tooth or teeth can often destroy the integrity of normal occlusion.

过早失去乳牙或牙齿往往可以摧毁完整的正常咬合。

In summary, we established a new model for investigating the functional reconstruction capability with dental pulp stem cells transplantation in vivo. We also revealed dental pulp stem cells from one deciduous tooth can be expanded in vitro which possibly can be utilized for teeth replacement therapy in the future.

总括来说，本研究建立了一个新的研究牙髓干细胞应用於牙齿再生治疗的模式，我们发现从乳牙中可以分离出牙髓干细胞，未来并可进一步应用来修复牙齿的缺损。

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。