查询词典 backward lead

Originating the water ascends to drag along to take, porterage etc. activity, its development process has something to do with 蛙泳 with free 泳.Appear in 1794 the relevant human body lie on the back the surface, two arms row the water backward in the side, two legs do the 蹬 of the 蛙泳 clips the operative writing jots down, so have the " versa 蛙泳" or" breast-stroke swimming backstroke" at the beginning it call.The 1902 lead the free the technique of 泳 into the backstroke,1912 the United States athlete 赫 cloth 纳 H.

起源于水上拖带、搬运等活动，其发展过程与蛙泳和自由泳有关。1794年出现有关人体仰卧水面，两臂在体侧向后划水，两腿做蛙泳的蹬夹动作的文字记载，故最初有&反蛙泳&或&蛙式仰泳&之称。1902年将自由泳技术引入仰泳，1912年美国运动员赫布纳

Based on the detailed thermal calculation using backward pass;An optimization method based on genetic algorithm for optimal operation initial steam pressure of peaking lead was proposed.

0引言随着电力基础建设的快速发展，电网容量越来越大，电网容量的增大和电网峰谷差的增加，大容量机组已由过去的电网主力机组逐渐转变为调峰机组。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。