查询词典 derricks

Harassment with Sickles should primary focus on two objects: Ore Collectors and Oil Derricks.

用镰刀骚扰应该专注于两个目标：矿车和油井。

This method can be used for an overall and precise analysis of the structure of the derrick, and a case study shows that this method is suitable for all kinds of derricks.

实例测试和计算机载荷模拟试验表明，这种方法可使井架的试验和分析更加全面、准确、可靠，而且适用于各种类型的井架。

Gin Pole - An "A" frame structure located at the top of standard derricks used to lift and lower the crown block into position.

天车人字架：一个& A &形框架结构，位于标准井架的顶部，用于起升和放下天车到指定位置。

The stress in tower type of derrick is smaller than the other types of derricks under the combined action of compressive and torsional loads.

与仅受压载荷相比，井架承受压扭联合载荷时，弦杆应力稍有增加，而非弦杆应力有较大的增加。

1Hands employed in painting derricks , davits and masts .

水手从事于漆吊杆、吊柱和桅杆。

This thesis presents a method of double nonlinear analysis to study the mechanical behavior of derricks steel structures.

本文应用双重非线性有限元方法研究井架结构的力学行为。

According to the analysis, the nonlinear effects are mainly on the stiffness of downhole derricks steel structure.

本文研究了井架结构的极限承载力问题。

Not to mention putting an engineer into a sudden transport is a very safe way to secure oil derricks.

不必多说的是放置一个工程师在快速运输车里是非常安全的方式来占油矿。

The SWL of my derricks is 5 tons.

我的吊杆的安全工作负荷是5吨。

The mechanical characteristics of derricks in the domain of plasticity are considered by material nonlinerities analysis.

对线性、非线性两种分析方法所得的结果进行了对比分析。

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。