When did she cut her first tooth?
她什么时候长出的第一颗牙？
你已经拔了一颗牙。
Detailed analysis of the cut marks on the bones show they differ substantially from tooth and claw marks that can be left by predators.
骨头上切割痕迹的详细分析显示，它们与食肉动物留下的牙齿痕迹与爪痕存在本质的区别。
The system can perform the computations such as blank dimensions, cutting and grinding settings, tooth contact analysis and under cut check of SGM, SFM, SGT, SFT, HGM, HFM, HGT, HFT cutting methods.
该系统可完成SGM、SFM、SGT、SFT、HGM、HFM、HGT、HFT切齿法的齿坯几何参数、切齿调整参数、轮齿接触分析、磨齿调整参数和根切检验等计算。
A quadratic model of predicting helical milling force was researched. The effects of spindle speed, feed per tooth, and axial and radial depth of cut were analyzed.
通过统计学中的响应曲面法建立了螺旋铣削过程中切削力的二阶模型，并分析了主轴转速、每齿进给量、轴向和径向切削深度等因素对切削力的影响。
The smear layer is produced simultaneously when the tooth hard tissue is cut mechanically.
玷污层是牙体切割过程中的必然产物。
The baby had put on five pounds and had cut his first tooth.
这个孩子已经长了五磅体重，还长了第一颗牙齿。
A new type of productive hob which can change the cut width and depth on each tooth of the hob is presented in this paper. It's title is turn cutting hob.
本文提出了一种通过改变滚刀每个刀齿的切削厚度与切削宽度的，新型的高生产率滚刀—轮切式齿轮滚刀。
The gearing machine tool of the model Y3150E is modified and a new milling head is designed to cut the envelope tooth of the pinion using allelomorph method.
对Y3150E型滚齿机进行改造，设计出一新型的铣削头，利用对偶法加工小齿轮的圆弧包络线齿形；
The knife tooth part is the rectangle, through adjusts two cutter surface knife's center distance, cannot replace the cutter, can cut many kinds of different widths on the noodles.
刀齿部分为矩形、通过调整两切面刀的中心距，不需更换切刀，就能切出多种不同宽度的面条。
Think of using a tooth-pick to poke an orange at high speed. See if you can make a symmetrical linear cut.
想象你用一根牙签以高速度去戳一个橘子。你可以将那橘子造成对称而且线形的切痕？
Think of using a tooth-pick to poke an orange at highspeed. See if you can make a symmetrical linear cut.
想像你用一根牙签以高速度去戳一个橘子。你可以将那橘子造成对称而且线形的切痕？
With it pinions can be machined with hob or single-tooth indexing, also can with shaft cut-in and radial cut-in method.
可采用逆铣和顺铣方法加工齿轮，可以轴向或径向进行加工。
With it pinions can be machined with hob or single-tooth indexing, also can with shaft cut-in and radial cut-in method.
可采用逆铣和顺铣方法加工齿轮，可以轴向或径向进行加工。
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