It's hard to say what caused the accident.

She did at least write to say thank you.

她至少还写了信道谢。

I realized that it was the wrong thing to say.

我意识到说这话不恰当。

I'm having trouble finding anything new to say on this subject.

在这个课题上要提出什么新看法，我有困难。

She didn't even call to say she wasn't coming.

她甚至没打电话来说一声她不来了。

I didn't give him a chance to say a word.

我没有给他说话的机会。

I didn't want to say anything without actually reading the letter first.

在未确实读信之前我什么也不想说。

Who's to say we would not have succeeded if we'd had more time?

要是时间更充裕，没准儿我们就已成功了，谁说得准呢？

He's no better, I'm afraid to say.

我很抱歉地说，他一点也不见好转。

Well, really! What a thing to say!

啊，真是的！这么说太不像话了！

A 10t/ h BFB boiler retrofitted by applying fly ash underfeed recycling technology for the first time in Fujian area is described in detail in this paper.

详述在福建地区首次采用飞灰底饲回燃技术改造一台10t/h地鼓泡流化床锅炉的情况。

Conclusion The BFB-R can help shooters to cope with the competitive anxiety, but the effect is dependant on the instruments in the laboratory.

结论：生物与反馈放松训练能在帮助运动员克服竞赛焦虑，但被试对实验室仪器有依赖性。

In this paper, mass distribution of fuel particles in the Binary Fluidised Bed ( BFB) consisting of materials of different density and size is discussed.

研究了稳定状态下异重流化床中颗粒沿床高的浓度分布规律。

The sulfur transformation during pyrolysis of used tires is studied in BFB reactor, and IRN neural network model is developed to test against observed behavior.

对废轮胎在鼓泡流化床热解反应器中热解时硫的迁移行为进行了试验研究，并基于带偏差单元的IRN神经网络对其进行了预测。

Melon Bacterial Fruit Blotch ( BFB) was an important disease in local melon production.

细菌性果斑病是当地甜瓜生产中的重要病害。

Practice of reconstruction of BFB boiler to CFB boiler

鼓泡床流化床锅炉改造为循环流化床锅炉的工程实践

Biological fluidized bed ( BFB) is one of the common technologies used in wastewater treatment.

生物流化床技术是废水处理中常采用的生物技术之一。

Meanwhile, BFD decreased the blood lipid levels and blood rheological indexes ( P < 0.01 or P < 0.05).

补肾复活汤对患者的血脂和血液流变学各项指标均有改善作用（P<0.01或P<0.05）。

Lastly, we do some research on object file format and BFD for the next, coding for creating object file.

最后对下一步要编写的代码（生成二进制目标文件的代码）所要用到的知识（目标文件格式、BFD库函数）进行了研究。

High-carbon steel wire depended on importing because of homemade wire with a high BFD.

目前，国产热轧高碳盘条与国际先进水平的主要差距就表现在高断丝率上。

Research on Optimized BFD Algorithm of Backup file

文件备份的优化BFD算法