We got home and went sledding on the small hill in our back yard.我们回到家里，然后去后院的小山上滑雪橇。After it had stopped snowing, we all went sledding.雪停之后, 我们都去滑雪橇.Luck has come our way at last , after all the hard sledding.我们拼命苦干了多年,...
The antistatic agents utilized in the process are water - soluble ionic dyes.本法所用的抗静电剂,是 水溶性 离子染料.The antistatic agent CMM is a kind of cationic surfactant.抗静电剂CMM为阳离子表面活性剂.Recommended for gasoline or crude - oil tanks w...