Objective To study the damage effect of the direct acting mutagens in soluble organic fractions (SOF) of diesel particulates on DNA of cells.
目的了解柴油机排气微粒有机可溶成分中的直接致突变物对细胞dna的损伤作用。
The reason for abnormal leakage of general spring direct acting safety valve is analyzed and the method for overcome this abnormal leakage is proposed.
分析了一般弹簧直接作用式安全阀非正常泄漏的原因，提出了克服其非正常泄漏的方法。
The structure, operating principle and manufacturing process of double diaphragm direct acting gas regulator are introduced.
介绍了双薄膜直接作用式燃气调压器的结构、工作原理及制造工艺。
Options include direct acting and diaphragm type operations in a Normally Open or Normally Closed version.
可选包括直接作用和隔膜式常开或常闭版本。
The direct force is acting on the pitch channel and the yaw channel, and the roll channel is stabilized by the fin surface deflection.
设计的轨控直接力作用于俯仰和偏航通道，而滚转通道没有直接力系统的作用，依靠气动舵面的偏转对滚转角进行稳定。
It is necessary to set up a 3-d finite element model and to convert the external loads acting on the hull into nodal forces of finite element in the direct strength calculation of hull structure.
在船体结构强度直接计算方法中，需要建立三维有限元模型，船体所受到的外载荷也应相应地转化为有限元节点力。
Conclusion the direct acting mutagens in soluble organic fraction (SOF) of diesel exhaust particulates could remarkably damage the DNA of cells.
结论柴油机排气微粒有机可溶成分中的直接致突变物对细胞DNA具有明显的损伤作用。
There are four types for PWR pressure-relieving devices: direct acting safety valve, pilot-operated pressure relief valve, power-operated pressure relief valve and safety valve with auxiliaries.
PWR的压力释放装置主要有四种类型：直接作用式安全阀、先导操作压力释放阀、动力作用式压力释放阀和具有辅助装置的安全阀。
In order to solve this problem, the mathematic model of a designed seawater direct acting relief valve has established and related dynamic characteristics simulations have been done in this paper.
针对该问题，建立了一种直动式海水溢流阀的数学模型并进行了仿真分析。
Valves are direct acting and pilot-type two kinds.
减压阀有直动型和先导型两种。
LIP high voltage direct acting solenoid valve is widely used in metallurgy, petroleum, chemical, food, textile, etc...
LIP高压直动式电磁阀广泛应用在冶金、石油化工、食品、纺织等各个领域。
Acting as the major component for construction of pile caps in deep water, the rational design of the cofferdam has a direct bearing to the construction quality of whole bridge.
钢吊箱作为深水承台施工的主要构件，其设计的合理与否关系到整个桥梁的施工质量。
Acting as the major component for construction of pile caps in deep water, the rational design of the cofferdam has a direct bearing to the construction quality of whole bridge.
钢吊箱作为深水承台施工的主要构件，其设计的合理与否关系到整个桥梁的施工质量。
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