您要查找的是不是：
- hard shell sphere model 硬壳球体模型
- This kind of beetles have hard shell. 这类甲虫有坚硬的外壳。
- The turtle has a very hard shell. 乌龟有很坚硬的外壳。
- The turtle is protected by its hard shell. 龟受到它的硬壳的保护。
- The hard shell of giant dune worms. Adds +10 armor. 巨沙虫的坚硬外壳。增加10点装甲。
- The hard shell of a nut protects the seed inside it. 坚果的硬壳保护里面的种子。
- A seed borne within a fruit having a hard shell, as in the peanut, almond, or walnut. 坚果种子生长在有硬壳的果实之内的种子，如花生、杏或核桃
- We all huddled in a hard shell, refused to expose our intention. 大家都蜷缩在坚硬的壳中，轻易不肯暴露与决断。
- A disk model and a sphere model simulating the particulate material were developed. 颗粒的仿真采用球状与盘状两种模型以比较其适用性。
- I can't break the walnut, as it has a very hard shell. 这核桃梆硬，我砸不开！
- The ripeness index was derived from the elastic sphere model to determine elastic modulus. 且利用弹性圆球理论求出弹性模数，推导出一成熟度指标因子。
- Euler's equation in wavenumber domain has been derived based on its spatial expression and tested by gravity and magnetic anomalies of sphere model respectively. 摘要基于空间域中的欧拉方程，推导出频率域中的欧拉方程。分别以球体的重、滋异常进行模型试验。
- Hard sphere model in sputtering theory 溅射理论中的硬球模型
- I don't like crabs because they have hard shells. 因为螃蟹壳硬，我不喜欢吃螃蟹。
- The fluorescence intensity of Ru(bpy)2(dppx)2 + in organic solvents will decrease dramatically with the increasing concentrations of water in the solutions, which follow the Perrin sphere model. 有机溶剂中水含量的增加会大大降低Ru(bpy)_2(dppx)~(2+)的发光强度，其荧光猝灭符合Perrin sphere模式。
- A seed borne within a fruit having a hard shell,as in the peanut,almond,or walnut. 坚果种子生长在有硬壳的果实之内的种子，如花生、杏或核桃
- The crosslink density is measured by swelling-compressing method and is calculated by the formula derived from the three phase sphere model which is used in the mechanics of composite materials. 交联度由溶胀压缩方法测量,用作者推出的复合材料基体交联度的计算公式计算。相对交联度和凝胶百分数由称重法测出。
- That under everyone's hard shell is someone who wants to be appreciated and loved. 在某些人坚强的外表下;也渴望被欣赏和爱.
- It helps to think of a soft-boiled egg with a runny yolk, a firm but squishy white and a hard shell. 前句说的是火山的构造，后句谈的是鸡蛋。
- Small snail: sister no bones caterpillars, but also unpleasant climb, why she did not back the hard shell it again? 小蜗牛说，毛毛虫姐姐也没有骨骼，也是不舒服的爬着走，为什么她不用背着重重的壳那？
