From the chemical composition, trace element, inoculation and thermal exchange of metal mold casting, the principle of chill formation and the effective methods for preventing chill were studied.
文章从铸铁的化学成分、微量元素、孕育处理及金属型的热交换方面叙述了产生白口的原理及防白口的有效方法。
Trace cobalt in running water from Guangzhou Running Water Factory, ZhongshanUniversity Running Water Factory and Pearl River water were determined by laser thermal lenstechnicality.
本文应用激光热透镜技术测定了广州自来水厂和中山大学自来水厂的自来水及珠江水中的微量钴。
Tyco Thermal Controls can provide a complete system from electrical transformer and heat-trace panel to power connections, heating cable, end terminations, glass tape and warning labels.
泰科热控提供一整套完备的系统，从配电变压器、电伴热控制柜到接线盒、伴热线、尾端、玻璃胶带和警示标签。
The burial history and thermal history of the outcrop are modelled firstly in China, and the organic matter maturity ro % of subsurface source rock is predicted by artificial changing burial trace.
本文在国内首次模拟了野外露头的埋藏史和地热史，并通过人工改变埋藏轨迹，预测了盆地内中侏罗统地下烃源岩的有机质成熟度。
The principle and test method of using adsorptive stripping voltammetry to determine the mass concentration of trace iron in boiler water of thermal power generating units are described in this paper.
介绍了用吸附溶出伏安法测定火力发电机组锅炉用水中微量铁质量浓度的原理和试验方法，并对多组试验数据进行了分析和讨论，从而得出测试参数的最佳选取值。
The principle and test method of using adsorptive stripping voltammetry to determine the mass concentration of trace iron in boiler water of thermal power generating units are described in this paper.
介绍了用吸附溶出伏安法测定火力发电机组锅炉用水中微量铁质量浓度的原理和试验方法，并对多组试验数据进行了分析和讨论，从而得出测试参数的最佳选取值。
应用推荐