Starting difficulty is the common EFI gasoline engine fault,because whenever the engine is cold or hot,it must be started in many relatively harsh conditions,such as certain requirements of the engine air-fuel ratio,ignition time and ignition energy,and the voltage of battery and speed of the starter have also been requested.
起动困难是电喷汽油发动机的常见故障,因为无论发动机处于冷态还是热态,都有着较为苛刻的起动条件,例如对发动机的空燃比、点火时刻以及点火能量等都有一定的要求,而且对蓄电池电压和起动机的转速等也有要求。
Researches indicated that solid water can enhance the survival rate of trees,especially in difficult site,satisfactory effects of afforestation could be obtained.
以往研究表明,固体水能够提高造林成活率,特别在困难立地造林应用中已取得较好效果。
In order to enhance survival rate of trees planted in difficult sites and reduce sandstorm harm to Beijing,solid water application experiment was carried out for afforestation in the desolate alluvial flat of Longqingxia in Yanqing County of Beijing.
为提高困难立地的造林成活率,减轻风沙危害,在位于北京市北部的延庆县龙庆峡荒滩布置固体水造林的应用试验。
Research of the Difficulties Site's Habitat Characteristics in Hilly Region on Loess Plateau
黄土高原吴起县合家沟流域困难立地生境特征研究
In fact, this only disgusts people, alienates the masses, and they put themselves in a corner.
其实只能令人讨厌，脱离群众，使自己陷于孤立和困难的地步。
He breasted every trouble as it came.
他勇敢地迎接每个困难。
He faced up to his troubles manfully
他勇敢地面对困难。
but I have problem in geography.
不过，我学地理有困难。
We wormed our way through the crowd.
我们困难地挤过人群。
a recurrent problem [difficulty]
反复地发生的问题[困难]
read with difficulty.
非常困难地理解某事物。
a bad or difficult situation or state of affairs.
糟糕困难的境地或状态。
Things have come to a nice pass.
事情已陷入困难的境地。
It is difficult for letters to reach the camp.
信件到达营地很困难。
She knocked up against difficulties.
她意外地遇到困难。
He faced the difficulty without a tremor.
他毫不畏惧地面对困难。
It was hard to walk through the swamp.
要走过沼泽地是困难的。
In a difficult or embarrassing position.
处于困境处于一种困难或尴尬的境地
She breezed through that difficult book.
她毫无困难地把那本难读的书读完了。
The stickiest issue is building a directory of digital certificates.
最困难的问题是建立数字证书目录。
He attacked the difficulties at once.
他立即着手解决这些困难。