51.date of treatment 处理日期
date n.日期；日子
What is the date today？今天是几号？
Many ruins of Roman date are to be seen in the south of France.
许多古罗马时代的遗迹可以在法国南部看到。
treatment n.待遇；处置；处理；治疗
His treatment of the animal was cruel.他对待这只动物很残忍。
治疗法；治疗药品
The doctor‘s treatment cured him.医生的治疗使他的病痊愈了。
52.deratting certificate 除鼠证书
53.deratting exemption certificate 免予除鼠证书
exemption certificate免除证书
exemption n. 解除， 免除， 免税
54.district free from infectious disease 安全非疫区
district n. 行政区；地域；区域
a postal district 邮政区
She doesn‘t live in this district.她不住在这个区。
Each living district in the city is fenced in / round with elms.城内每个生活区的四周用榆树修成篱笆。
55.divisible L/C 可分割信用证
divisible adj. 可除尽的（数）
8 is divisible by 2. 8可被2除尽。
56.document 单据，文件
document vt.用文件证明
to be well documented有许多文件证明
57.documentary credit 跟单信用证
documentary adj.纪实的（影片）
a documentary about coal miners反映煤矿工人的纪录片
58.documentary draft 跟单汇票
draft n.草稿；草图；银行汇票；
a cold draught under the door门底下的冷风
59.draft 汇票，草案
60.duplicate 复本，副本adj. 双重的；两个一样的
a duplicate key两把完全一样的钥匙