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MAIN OUTCOME MEASURES: At weeks 2, 4, 8 and 12 after operation, X-ray examination, hard tissue slicing, determination of bone formation rate and mineral apposition rate were all performed.

主要观察指标：检测植入材料2，4，8，12周后缺损部位X射线、硬组织切片、骨形成率和矿化沉积率。

Results Four cases of pelvic injury are all multiple injuries, confirmed by X-ray photography and CT examination approvingly.

结果 四个骨盆损伤案例都是多发损伤，通过X线和CT检查均能满意地确认。

In approximation theory,the approximation of non-smooth function |x| is a very classical problem.

在逼近论中，非光滑函数|x|的逼近问题是一个非常经典的问题。

Photogravure, with etching and aquatint, printed in black and blue inks, with collage and string additions; 55 3/4 x 25 7/8 in.

凹版照相，铜版印刷和凹铜版腐蚀制版法，蓝黑墨水印刷，排成一列的拼贴画，55 3/4 x 25 7/8 in。

The feasibility of using silk fibroin as materials for making microencapsule was investigated by preparing SF/Alginate, SF/Chitin and SF/Arabin blend films, determing their mechanical properties and testing their structure by means of X-ray diffraction and IR spectra.

本论文通过制备丝素蛋白与天然高分子材料——海藻酸钠、甲壳胺、阿拉伯树胶共混膜，测定其力学性能，同时利用X-射线衍射和红外光谱测定其结构，探讨了丝素作为微胶囊包囊材料的可行性。

Then x will get some arbitrary value (as in C and C++); it will not automatically be initialized to zero .

那么x会得到一些随机值(这与c和c++是一样的)，不会自动初始化成零。

Returns the arc cosine of x in radians.

返回 x 的余弦值。

Returns the arc sine of x in radians.

返回 x 的正弦值。

Returns the arc tangent of x in radians.

返回 x 的正切值。

Polar-coordinate NC Tool accept'G01 X,Z,C'instruction to complete a resultant Archimedes Spiral trails, Which is composed of a rotational coordinateand a linear motion.

极坐标数控机床接受"G01 X，Z， C"格式的极坐标指令，完成C 轴旋转坐标和Z轴线性坐标的合成运动轨迹—阿基米德螺线轨迹运动。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。