Engrossing himself in the theory and practice of intelligence, he crossed from the periphery into the real world of espionage . 他全力倾注于对情报理论的研究和实践，从谍报世界的外部跨进到了它的内层。
The cuticle exists as the separable outer boundary and consists of a layer of wax and pectin materials that appears to be structureless . 可以区分开来的外部周界是表皮层，由无定形组织的蜡质和果胶构成。
A second method is to furnish the surfaces with hinges and to use an exterior sector with drilled holes for each angle setting . 第二种方法是在翼面上装置铰链，用一个对不同安装角钻有不同孔的外部扇形件与之配合。
Fuel vapors can escape from the carburetor float bowl through external vents, internal vents and fuel passages and air bleeds . 燃料蒸汽可以从化油器浮子室通过外部通风口，内部通风口，燃料通道和空气泄放口逸散出去。
Of course, somewhat similar arrangements were used in the west and supported by the outside spiritual organizations, for the most part . 当然，在西方也使用了一些多少有些类似的安排，并且在大多数情况下都得到了外部精神组织的支持。
Immigration, like any other source of population growth, may bring external costs associated with crowding-extra noise, conflict, crime . 象任何别的人口增长来源一样，移民也可能会造成与人口拥挤的种种外部代价--过多的噪声、冲突、犯罪。
In this model, the resulting implosion and ensuing explosion would blow off the outer envelope of the star and leave behind the core as a neutron star . 按此模型，引起的突然压缩和随后的爆发会把恒量的外部包层吹跑，留下的核成为一颗中子星。
Analyses of dynamic crack propagation and crack arrest for a specified initial flaw size, external geometry, and applied load can be conducted in either of two different ways . 为特定的初始裂纹尺寸、外部几何形状和应用载荷对动态裂纹扩展和裂停止进行分析，可以用两种不同方法中的任何一种来进行。
The conditions can be internal , or external 条件可以是内部的，也可以是外部的。
The thought of external economy in the theory of trade 贸易理论中的外部经济思想
