给定一棵二叉树，计算其最小深度。
最小深度是指从根节点出发到达最近的叶子节点所需要经过的节点个数。
The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node.
传感器(40)在盐水储罐中通常从盐水的最小深度垂直地向盐水溶液的最大深度移位。
The sensors (40) are displaced generally vertically in the brine tank (16) from the minimum depth of the brine to the maximum depth of the brine solution.
这种可以每秒钟记录深度和光线的装置被固定在企鹅的背上，以将阻力减到最小。
The devices, which register depth and light every second, were taped to the lower back, so that they caused the least amount of drag.
最小队列深度显示了度量对象池有多浅。
The minimum queue depth shows how shallow the measurement object pool got.
马格努松对于这个欧洲最小最偏远国家之一的社会史的核心主旨就是文化的深度和物资匮乏的结合。
That combination of cultural depth and material backwardness is the central message of Sigurdur Gylfi Magnusson's social history of one of Europe's smallest and remotest countries.
该方法弥补了以往各向同性球壳模型的不足，可计算出任意深度的原岩应力状态：铅垂应力、平均水平应力、水平面内最大及最小正应力。
By this method, it is capable for calculating the initial rock stress, i. e., vertical stress, average horizontal stress, maximum and minimum horizontal stress, in any depth below surface.
为探讨微切削的加工机理，对能稳定切削的最小切削深度进行了研究。
To probe into machining mechanism in micro cutting, the minimum cutting depth for achieving stable machining was discussed.
通过数值实验发现所需测试试样的最小长度远小于相关文献中的穿透深度。
Through numerical experiment, it is found that the minimum length of test sample is much shorter than the penetration depth of literature.
该技术通过平移实物参考面，测得其上位相分布，利用其位移距离与位相增量之间的关系，以最小二乘方法计算位相差与物面深度之间的映射关系。
According to the shifted distance and the phase increment, the mapping relationship between phase difference and depth of object can be determined by a least squares method.
工具管柱要到达工作深度或有关层段所必须经过的在井筒中存在的最小直径。
The smallest diameter present in a wellbore through which a tool string must pass to enable access to the operating depth or zone of interest.
通过逐一确定井温曲线拐点达到确定裂缝高度的目的。利用最小二乘法可以确定井温曲线拐点深度，从而可以解释垂直裂缝高度。
By use of minimum quadratic multiplication the inflexion depth to temperature curve can determined that can interpret the vertical crack height.
窗户都采用了凹入处理，这样显示出窗台深度和纹理，同时也将太阳得热最小化。事务所补充道。
Windows are deeply recessed to provide depth and texture, while also minimising solar heat gain, the firm added.
以深度优先搜索作为基本算法，用路径删除和结点删除方法产生多重解，用最小成本法求出最优解。
Based on depth first search, the article USES route deletion and node deletion methods to produce multi-solutions, and then determine the optimum solution with least costing.
通过多元线性最小二乘回归，得到了射流深度的关联式。
The regression of the experimental data yields the correlation of jet penetration depth.
试验结果表明，采用水平基准面两步法静校正，时间剖面反演深度误差最小；
The results were as follows. The horizontal datum and two-pass statics method gave minimum depth error on time section.
为了在浮雕和雕刻中呈现更好的细节，我们建议的最小的厚度和深度为1毫米。
For embossed and engraved details, we recommend a minimum line thickness of 1 mm and a depth of 1 mm.
为了呈现更好的浮雕和雕刻的细节，我们建议最小的厚度和深度为0.5毫米。
For embossed and engraved details, we recommend a minimum line thickness of 0.5 mm and a depth of 0.5 mm.
反演的界面起伏形态可与已知井的测深资料相对比，平均深度误差为10％，最小的深度误差仅有2％。
The undulation shape of inversion interface can be correlated to that of sounding data at known borehole, the average depth error being 10%, and the minimum depth error being 2% only.
30度的入槽角是既使工件迅速地侵入槽液中，又能保持槽的深度最小的择中方案。
The thirty-degree angle of entry is a compromise which permits the vehicle to be quickly submerged in the paint while keeping tank depth to a minimum.
在深度方向皮质骨层接触压力最大，在骨孔底部松质骨层接触压力最小；
The maximum occurrs in direction of the medial-distal aspect in cortical bone layer and the minimum the buccal-lingual area on the bottom line in the cancellous bone.
结果表明：工件进给速度对表面粗糙度的影响最大，切削深度和刀具前角次之，工件硬度影响最小。
The results show that the effects on surface roughness are feed speed, depth of cutting , tool rake angle and parts hardness in turn.
多数情况下，人们会发现所建议的预防涡流的最小潜水深度会等于或大于预防电机过热的最小潜水深度。
In many cases it will be found that the minimum recommended submergence to prevent vortexing will be equal to, or greater than, the minimum submergence required to prevent overheating.
跨逆断层的埋地管线在满足管顶最小覆土深度、土壤冰冻深度以及抗浮要求等前提下，以浅埋为宜。
While meeting the requirement of the minimum depth of the overlaying soil and the frozen depth, the cross-reverse fault pipeline is appropriate to be buried in shallow soil.
计算每个可能震中位置的目标函数，取目标函数最小值为震中，并以此可分层计算得到震源深度及发震时刻。
In this method first the objective function of each possible epicenter is calculated then the exact epicenter can be defined under such a condition that the objective function is minimum.
为了延时最小，该模型优先考虑选择节点深度小的节点，为减少线路的重复占用优先考虑了临近节点。
The nodes with small depth are selected in this model for less delay. In addition, the nodes nearby are selected for reducing the repeating lines occupation.
为了延时最小，该模型优先考虑选择节点深度小的节点，为减少线路的重复占用优先考虑了临近节点。
The nodes with small depth are selected in this model for less delay. In addition, the nodes nearby are selected for reducing the repeating lines occupation.
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