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Computation result shows that the design thickness of subbase is 34 cm with H-6,it is 33 cm with MD-82,their relative error is only 3.03%,which indicates that the design method is correct.8 tabs,2 figs,16 refs.

计算结果表明，以H-6为设计飞机，下基层设计厚度为34 cm，以MD-82为设计飞机，下基层设计厚度为33 cm，两者相对误差仅为3.03%，说明此设计方法是正确的。

The threshold of lithium tantalite under single-shot is found to be 1.84J /cm 2 and the avalanche rate was determined to be 1.01 cm 2 /J by calculation. We found that avalanche dominates the ablation process, while photoionization serves as a free electron provider.

在800nm飞秒激光脉冲作用下，钽酸锂晶体单脉冲烧蚀阈值为1.84 J /cm 2；在此基础上，我们通过建立钽酸锂晶体中导带电子密度演化微分方程，并数值求解，得到了钽酸锂的碰撞电离速率系数为1.01 cm 2 /J ，并得出在钽酸锂表面烧蚀中，光致电离提供种子电子，雪崩电离起主导作用的结论。

The suitable buried depths of tensiometers used for drip irrigation scheduling of tomato should be determined based on the buried depth of drip tape. The experiments recommended that one tensiometer should be installed just below a drip tape at depth of 30, 50 and 70 cm for the lateral depth of 0, 15 and 30 cm, respectively.

建议采用负压计制定灌溉计划时在毛管所在垂直剖面上安装1支即可，该研究条件下，毛管埋深0、15和30 cm时，用于制定灌溉计划的负压计宜分别埋置在毛管所在剖面上30、50和70 cm深度。

The temporal and spatial distribution of SMP in tomato root zone and the correlation between tomato evaportranspiration and SMP variations were analyzed. The results showed that the variation of SMP among the soil profiles of 0, 15 and 30 cm from drip tape was insignificant, and the horizontal distance of tensiometers to drip tape had little effect on the correlation between tomato ETa and SMP variations. Lateral depths significantly influenced SMP from 20 to 70 cm soil layer and there were obvious effects of tensiometer depth on the correlation between tomato ETa and SMP variations.

对番茄根区土壤基质势时空分布和番茄耗水量与土壤基质势变化的相关性分析表明，水平距毛管0、15和30 cm 3个剖面间土壤基质势差异较小，负压计距毛管的水平距离对耗水量与土壤基质势变化的相关程度影响不大；毛管埋深对20～70 cm土层土壤基质势影响显著，负压计埋置深度对耗水量与土壤基质势变化的相关性影响显著，应依据毛管埋深确定负压计适宜埋置深度。

Objective To provide a new anesthetic method for the cervical plexus anesthetic.Methods The structures of deep layer of anterior jugular around the anesthetic point were (15 cm below the superior margin of thyroid cartilage and the lateral 4 cm to the anteriomedian line) observed on 30 sides of adult cadavers.The distance between the importat nerves.

用30例成人标本，分层解剖观察新麻醉点（甲状软骨上缘下15 cm 与前正中线外4 cm 交点处）与颈前部深层周围结构的毗邻关系，测量了主要神经血管距麻醉点的距离。

Packaging: tin/can 500 g, diameters 10 cm, 12,8 cm high of label.

包装：500 g/罐，直径10 cm，标签的高度12，8 cm。

The average osteotomed length from the tip of great trochanter to distal osteotomy site was 12.4 cm (9～15.1 cm).The osteotomy sites were healed in 11 patients at 3 months and 2 patients at 6 months after operation.

平均截骨长度从大粗隆顶点至截骨远端为12.4 cm(9～15.1 cm)。11例患者在术后3个月时截骨端愈合，2例患者在6个月随访时截骨端愈合。

Among the environmental factors , both soil organic carbon and annual precipitation were the most important factors affecting TSN in the 0 - 20 cm layers. In t he 20 - 40 cm soil layer , TSN was most affected by soil organic carbon.

而各环境因素中影响土壤全氮含量最主要的因素，0~20 cm土层为土壤有机碳和年降水量，20~40 cm土层主要受土壤有机碳的影响。

In this paper, a 2-year field manipulative experiment was conducted to study the effects of clipping (stubbled 1 cm, stubbled 3 cm, and unclipped), fertilizing, and watering on the compensatory growth of Elymus natans . The compensatory height, specific leaf area, net photosynthesis rate, and relative growth rate were measured, aimed to approach the compensatory mechanism of the species.

通过为期2年的野外控制实验，研究了刈割高度（留茬1 cm、3 cm及不刈割）、施肥和浇水处理对垂穗披碱草补偿生长的影响，并结合对各处理分株密度、比叶面积、净光合速率和相对生长率的变化研究，探讨了其补偿生长机制。

That is, the appropriate electric field should be a uniform electric field in the strength of 1.0V/cm with the reversal time interval of 10 min in rhizosPHere soil; while the appropriate electric field should be a uniform electric field in the strength of 1.5V/cm in non-rhizosPHere soil.

施加均匀场1.0V/cm的同时，每隔10min切换极性，是土壤根际微生物群落在电场作用下比较合适的电场条件；而对土壤非根际微生物来说，施加均匀场1.5v/cm是相对比较合适的电场条件。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。