追溯

The history of this family can be tracked back to the 17 century.

这个家族的历史可以追溯到十七世纪。

However, this requirement may be met by using a supplier-designated number cross-referenced with clear tractability back to the customer.

但是这样的要求，供应商也可用设定的号码清楚追溯比对到顾客来达成。

The Production Department shall establish and maintain the records of every lot of medical devices with the production quantity and sales quantity approved, so as to realize the tractability .

生产部应建立和保持对每一批医疗器械的记录，以实现可追溯性要求，并且标明制造数量和批准销售的数量。

However, this requirement may be met by using a supplier designated number cross—referenced with clear tractability back to the customer.

然而，通过相互参照，若能明确追溯至顾客，则使用供方指定的编号也是符合此要求的方法。

Reviewing the basis of sad consciousness, this tractate traces the source into original individual existence. That is from the visual angle of ontology. Man is first as an individual, his existence is finite.

从悲意识产生的根源上来考察，可以将原因追溯到有限个体的原初存在，这也就是从存在论的视角来考察。

The traditionary friendship between our two peoples can date back to the ancient days.

我们两国人民之间的传统友谊可以追溯到遥远的过去。

The concept of submachine gun dates back to World War One; the trench warfare of this war required effective and compact weapons for short-range fighting in trenches; additionally, a lightweight and maneuverable fully automatic weapon was desirable to complement light machine guns in both defensive and offensive scenarios, to cover last 200 meters of assault on enemy positions.

该冲锋枪的概念可以追溯到第一次世界大战，这场战争的堑壕战需要有效和紧凑的短武器的射程在战壕中战斗，另外，重量轻，机动性全自动武器是可取的，以配合在具有防御轻机枪和进攻方案，以支付最后200米的袭击敌军阵地。

"Three Birds Hanging from a Nail," their feathers floating down, is a very early example of trompe l'oeil, thought to be from a late 1st-century Pompeii fresco.

钉在一处的三只鸟》羽毛下翻，是错视画非常早期的作品，据推测可以追溯到一世纪的庞贝壁画。

Collecting tropical fish dates back to World War II in this country.

在美国，收养热带鱼的习惯可以追溯到第二次世界大战。

Collecting tropical fish dates back to World War Ⅱ in this country.

7，在这个国家里，收养热带鱼的习惯可以追溯到第二次世界大战。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐