English translation for "hard sledding"

费力

Related Translations:

jetting sled:  高压射流挖掘机

hard tissue:  硬组织

hard water:  硬火硬水

hard clay:  硬粘土硬质陶土硬质土硬质粘土

hard project:  硬项目

hard chrome:  硬铬

hard down:  舵柄推向)下风满舵下风满舵

quarter hard:  四分之一硬

hard liquor:  烈酒

hard nickel:  硬镍

Example Sentences:

	1.	Luck has come our way at last, after all the hard sledding . 我们拼命苦干了多年，终于交上好运了。
	2.	Kathy had hard sledding in her math course because she was poorly prepared 凯西的数学很难进步，因为她的基础太差。
	3.	Among the arithmetic of air - fuel control , self - learning , self - adapting and self - correction can meet control demand but they also need on - line identifying of object model . they are complicated and need vast operation so they are difficult to realize and need lots of gantry experiments , taking time and hard sledding , which lead to their application success rate under people ' s expectation 在空燃比控制算法中，采用自学习、自适应、自校正控制虽然能达到控制要求，但其本质上仍然要求对象模型的在线识别，故算法复杂，运算量大，难于实现，并需要进行大量的台架试验，费时、费力，致使它们的应用成功率远不如人们期望的那么高。

Similar Words：

"hard site" English translation, "hard size" English translation, "hard sized news" English translation, "hard sized paper" English translation, "hard sky" English translation, "hard sleeper" English translation, "hard slider" English translation, "hard sludge" English translation, "hard smash" English translation, "hard snow" English translation