射流过渡临界电流Ic的大小与什么因素有关?
参考答案:与射流过渡电流大小有关的因素有:焊丝成分,焊丝直径,汉斯伸出长度,气气体介质,电源极性。
仿照下列文字第二句的句式,接写两句话,使之成为一个统一体。
书是我的精神支柱,它重塑了我的灵魂。当简爱说,“我们是平等的,我不是无感情的机器”,我懂了作为女性的自尊;当裴多菲说,“若为自由故,二者皆可抛”。我懂得了作为人的价值;
每读完一本书,我就完成了一次生命的感悟。
请根据下面短文回答下列题: Safety Rules for Bike-Riding. 1. Never ride out into a street without stopping first. 2. Watch for stop signs. 3. Look behind before turning or changing lanes (车道) . 4. Always ride on the right. 5. Never follow another rider without applying the rules. Remember, your bicycle is a small compared with cars and trucks. It is not easily seen on crowded streets and will seldom attract attention on its own. At all times, do everything you can to make sure you are noticed.
Whom are these safety- rules for [A] People who drive. [B] People who ride bikes. [C] People who walk.