They were difficult to use and took a lot of space in a library.
它们难以使用，还占用了图书馆很大的空间。
Were they use it most (in combination with location sensors perhaps)?
他们在哪儿使用最多(或许和位置传感器一起使用)？
The sprouts were sold for use in salads.
这些豆芽经常用于制作沙拉。
He said the bags were for use in emergencies such as power failures.
他称这些袋子将在停电等紧急情况下使用。
Very few PDM systems in the past were recognized as simple and easy to use.
过去很少有PDM系统被认为简单易用的。
These toothbrushes were in general use in Europe by the early 1800s.
19世纪早期欧洲普遍使用这些牙刷。
Results There were severe problems in prescriptions and reasonable drug use.
结果处方书写及临床用药均存在严重问题。
Did you use to go jogging in the morning when you were at college?
你上大学的时候经常在早上跑步吗？
The points for attention in use, test, adjustment and maintenance were explained.
说明了黏度计安装使用、检测、调整以及日常维护应该注意的事项。
Primary impeller blades of vertical air compressor were broken down in the course of use.
某公司立空压机一级叶轮叶片在使用过程中断裂。
Silver and gold coins were once in common use in the United States.
金银币曾经是美国的流通货币。
But there were no significant difference in the use of L2-based strategies between the two.
但在第二语言策略的使用上，两者无明显差异。
You were able to use the pattern drill in making sentences.
你能使用模式演习，在制作的句子。
Life in novel is happiness, all the ending were planned, fight has no use.
生活在小说里面的人其实是最开心的，结局已定，抗争没有用。
Local stations could feed programs into empty channels that were not in use.
当地电台可以喂养程序并不是空的通道。
They were essentially made for use domestically in Northern China.
他们基本上为国内应用在中国北部。
They were unable to fold their wings when not in use.
他们无法折叠的翅膀在不使用时。
They were not heavy in weight, yet I was curious about their use.
东西倒不占分量，可是用途却很蹊跷。
They were not heavy in weight, yet I was curious about their use.
东西倒不占分量，可是用途却很蹊跷。
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