hit-or-miss

1. This, of course, can be accomplished through daily work experience, which is hit-or-miss approach that requires more time with no guarantee of results.
   这当然可以通过日常的工作经验完成，但这种没有计划的方法需要更多时间并且没有结果的保证。
2. No haphazard hit-or-miss methods will do.
   随意安排的、漫无目的计划是不起作用的。
3. Long-term planning is always rather a hit-or-miss affair.
   凡是定长远的计画都难免出偏差。
4. It all sounds a little hit-or-miss to me.
   对我来说这一切听起来都有点缺乏考虑。
5. The trial results highlighted the hit-or-miss nature of efforts to develop devices that use electrical stimulation or magnetic fields to treat brain and nerve disorders.
   试验结果强调，该公司没有用心开发这种通过电刺激或磁场来治疗脑部或神经紊乱的设备。
6. He did a lot of hit-or-miss reading, some of it about taxes.
   他漫无目的地读了很多书，有些是关于税务的。
7. David didn't know which cassette had the songs by Michael Jackson, so he began playing the record, trying the cassette hit-or-miss.
   大卫不知道迈克尔。杰克逊唱的歌在哪盘磁带上，因此他就无目的地听着。
8. It's a hit-or-miss affair, but events of the past few weeks have provided the writers with a rich seam of source material.
   它是一台无计划性的节目，但过去几周的事件给撰稿人提供了丰富的原始资料来源。
9. During his two-year efforts, his dating seems to be hit-or-miss.
   他两年的约会过程时好时坏。
10. Of course, reliability can be a rather hit-or-miss issue no matter where a car is built.
    当然，可靠性能，而没有击中或错过的问题是建立汽车问题。
11. The action scenes are hit-or-miss; you wonder whether the filmmakers blurred the images because they didn't have time to get the effects right.
    动作场面是杂乱无章的，你会怀疑是否是制片人将画面模糊了，因为他们没时间来做正确的特效。
12. But finding URLs that lead to real documents is largely hit-or-miss.
    但是，找到的网址，导致真正的文件主要是跅。
13. WASHINGTON ( Reuters)-There are no good drugs to treat dementia and doctors just need to try them in a hit-or-miss fashion to try to help patients, according to new guidelines released on Monday.
    华盛顿（路透社）&根据周一发表的新指南：治疗痴呆无特效药，医生们只能试着用偶然的方式来帮助患者。
14. The collection was hit-or-miss, but it was a marked improvement over Fall.
    这个收集是没有计划的，但它是一个秋季的一个显著改善。
15. In order to make our algorithm proposed in this thesis valid for the skewed document images, a skew detection algorithm based on the Hit-or-Miss operation and the Hough transform was firstly proposed for skew angle detection as well as the skew correction for document images.
    为了使算法能够对倾斜的文本图像进行正确的分割和分类，文章首先提出一种基于形态学和霍夫变换的倾斜检测算法对文本页面图像的倾斜角度进行检测，并对倾斜的文本图像进行校正。
16. Aimed at the use of foaming agents in EPBS is hit-or-miss, the state of the foamed soil is tested, and the tests prove that the main factors influencing the state of the foamed soil are foam stability and foam expansion ratio.
    针对土压平衡式盾构中发泡剂使用的盲目性，对气泡改良土的塑性流动状态指标进行了试验，得出气泡稳定性和掺入比是影响改良效果的主要因素；

adj

1. dependent upon or characterized by chance
   1. a haphazard plan of action
   2. his judgment is rather hit-or-miss

   Synonym:    haphazard