点焊的

The resistance spot welding process and character of galvanized steel is analyzed according to the experiment .

根据实验分析了点焊镀锌钢板的工艺过程及特点。

The invisibility and instantaneity of RSW process make it difficult to monitor and control weld quality.

铝合金电阻点焊技术成为铝合金在这些领域推广应用的一个主要制约因素。

The control circuit made up of double monostable circuit IC has realized some remarkable functions, such as cycle control , zero crossing trigger, and preventing from repeated and error trigger.

所设计的控制电路，利用双单稳电路 IC，实现了点焊过程周波控制、过零触发，以及防重触发和误触发功能，保证了焊接过程稳定、可靠。

Numerical simulation is an important method for investigating of resistance spot welding process.

数值模拟是研究电阻点焊过程和机理的重要手段。

Spot-welding inverter power is one of the most important developing trends in the field of resistance welding.

逆变式点焊电源是电阻焊领域研究的主要方向之一。

Monitoring and control technique for resistance spot welding quality is a high efficiency, low cost quality assurance measure.

点焊质量监控技术是一种高效率、低成本的质量保障措施。

Resistance spot welding is welding technique that is used for almost all known metals.

接触点焊是适用于几乎所有金属的技术。

Actually, time is the only controllable variable in most single impulse resistance spot welding applications.

实际上，时间是在大多数单脉冲电阻点焊应用中唯一可以控制的因素。

Of their relatively small cross sectional area, which does not allow them to sustain high stress.

由于其横截面积相对小，不能承受大的应力，所以点焊处容易产生裂纹。

The relations between self induction current,electric potential difference or Seeback effect and metal splashing are also discussed.

论述了点焊和凸焊中产生金属飞溅是由于焊接压力不够形成的。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。