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- The combined model with Gauss surface heat source and cylindrical heat source was used according to both the nail-shaped weld and the deep penetration of electron beam welding. 针对电子束焊接特有的钉头状焊缝及其穿透深度大的特点,采用高斯面热源与柱体热源组成的组合热源模型,对焊接温度场进行分析,模拟结果与实际焊缝取得了良好的一致。
- They dazzle the penetration of the composer. 他们使作家的洞察力混乱。
- The assignment of electrons is somewhat arbitrary. 电子的分配多少带有武断性。
- Oxidation involves the transfer of electrons. 氧化过程涉及电子的转移。
- An electric current in metal is caused by the movement of electrons. 金属内电流是由电子运动引起的。
- Dynamic focal spot and extremum effect of deep penetration of electron beam 电子束流的动态焦点和深穿极值效应
- Atoms are made up of electrons and protons. 原子由电子和质子构成。
- The penetration of a virus into the cell is most efficient at 37℃. 病毒穿入细胞最有效的温度是37℃。
- The number of electron pairs an atom can share with other atoms. 共用电子对数,共价一个原子与其他原子共用的电子的对数
- This theory is altogether alone in its penetration of the problem. 这一理论在对问题的分析上是独一无二的。
- In a radio tube there is a source of electrons. 在电子管中,有一个电子发射源。
- Sharing of electrons and form a strong covalent. 彼此分享各自的电子而形成了坚固的共价键
- The adaptation of electronics for astronautics. 应用航天电子学适用于航天学的电子学
- Relating to or designating a body having an excess of electrons. 阴电荷的关于或表明有过量电子的躯体的
- An atom normally contains equal numbers of electrons and protons. 原子在正常情况下含有数目相等的电子和质子。
- The firm is Britain's main producer of electronic equipment. 该公司为英国主要的电子设备制造厂家。
- The ozone layer reduces the penetration of ultraviolet radiation. 臭氧层能够降低紫外线的辐射穿透作用。
- Fog Unintended light penetration of photographic materials. 照相材料被光线无意渗入所造成的情况。
- Fog: unintended light penetration of photographic materials. 灰雾:照相材料被光线无意渗入所造成的情况。
- Every substance in the world, no matter how different it may seem from any other substance, is made partly of electrons. 世界上每一种物质不管看起来和其他物质多么不同,都部分地由电子组成。