向后

Whose bucket is rigidly attached to a hinged pole on the boom and is drawn backward to the machine when in operation.

反铲挖土机铲叶牢固地连在吊杆上的铰链孔中的一种挖土机，当它处于工作状态时，铲叶被向后拖向机器

An excavator whose bucket is rigidly attached to a hinged pole on the boom and is drawn backward to the machine when in operation.

反铲挖土机铲叶牢固地连在吊杆上的铰链孔中的一种挖土机，当它处于工作状态时，铲叶被向后拖向机器

Slide the right foot back, placing it on the floor. Draw the knee into the body and replace the leg on the chair.

将右脚拉回向后，置于地板上，将膝关节拉向身体并重新将腿置于椅子上。

On the forward scanner the entire tarmac was suddenly swallowed in red engine fire, and the ship was turning, drifting backwards and slowly revolving to starboard, pointing nose out towards the empty expanse of the infield airstrips.

在向前的扫描器上整个的飞机跑道突然在红色的引擎火中被吞，而且船正在转，向后漂流和慢慢回转把航向转向右方，向耕地飞机跑道的空宽阔的区域指出鼻子。

She drew back once more, and before the thing could recover and blast her—she again struck a hammer blow.

她再次向后移动，在那个东西恢复和毁灭她之前——她再一次向下猛烈锤击。

Simon was dreaming in his spare, curtained bed, nested among the treasures he had so carefully collected; in his dream he climbed a pillar of black ice, every straining inch upward eroded by a nearly identical slip backward.

Simon在分给他的、帘子围着的小床上，依偎在他精心收集的珍宝中，做着梦，梦里，他爬上一根黑色的冰做成的柱子，每向上方好不容易爬上一英寸，就几乎向后滑下一英寸。

Zen and Shin jump to catch them then one shoots an arrow while the other sends out the thunder toward the devil king.

天行还没说完，木土二人就痛哼了一声，向后飞摔而出，战心两人纵身接住了他们，然后一人射出圣箭，一人使出雷光，向天魔打去，可是圣箭一碰到天魔就消失了，雷光也像帮天魔搔痒般，天行著急的回身望去，只见一道白光从童博眉心激射而出，之后童博整个人都被白光包围，这团光瞬间变成光柱冲向天空，连已成形的天魔都被其强烈正气逼退了一步

For tightening and receding of wefts, the conditions under which wefts recede from the back beam and move forward towards the front beam relative to warps are developed by combining equilibrium condition of forces of warp with critical slip condition of weft.

针对纬纱的打紧与回退问题，将经纱的力平衡条件与纬纱的临界打滑条件相结合，建立了纬纱相对于经纱向后梁一侧回退及向胸梁一侧前移的条件。

My days were not days of the week, bearing the stamp of any heathen deity, nor were they minced into hours and fretted by the ticking of a clock; for I lived like the Puri Indians, of whom it is said that " for yesterday, today, and tomorrow they have only one word, and they express the variety of meaning by pointing backward for yesterday forward for tomorrow, and overhead for the passing day."

我的日子并不是一周中的星期几星期几，没有被烙上异教徒神灵的印记，也没有被切分成一小时一小时，并且被时钟的滴答滴答声搅得心烦意乱。我喜欢像印度的普里人一样生活。据说，他们在表达昨天、今天、明天的时间概念时用的是同一个词，而在表达不同的具体时间概念时，他们就用手向后指来表示昨天，向前指表示明天，像头顶指表示正在过去的一天。

In the training of HMM, referring to the auxiliary function in reference〓, and the method in reference〓 to get the estimations of the parameters of Markov chain, we define the likelihood function and auxiliary function for the maximum likelihood estimation of CDHMM, and then induce systematically the forward-backward algorithm and the re-estimation formulas for parameters of CDHMM.

在HMM的建模方面，本文借鉴文献〓中求多变量观测值马尔可夫链参数时辅助函数的选取方法，定义了CDHMM的似然函数和辅助函数；借鉴文献〓中求解马尔可夫链参数时的求偏导方法，并针对本文辅助函数加以简化和改进，系统地推导了HMM的前向—后向算法，以及CDHMM各参数的极大似然估计公式。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。