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1·Mechanical seals or stuffing boxes.

机械密封件，轴承，填料箱。

2·Metallurgy, shipbuilding, food mechanical seals.

冶金，船舶，食品机械密封。

3·It USES the well-known principle of mechanical seals.

它使用了著名的机械密封原理。

4·Long pump life because of excellent mechanical seals.

采用优秀的机械密封，延长使用寿命。

5·Some pumps use mechanical seals rather than packing (Figure).

某些泵不用填料，而用机械密封（图）。

6·Common seal installations fill two mechanical seals and seal.

常用轴封装置有填料密封和机械密封两种。

7·We have developed 20 series and 500 sizes of mechanical seals.

现已开发20多个系列，500多种型号的密封件。

8·Efficiencies include all mechanical losses including mechanical seals.

效率包括所有机械密封中的机械损失。

9·Mechanical seals are standard Type 21 design for low replacement cost.

标准“21型”机械式密封，有利于降低更换成本。

10·Note: Units with motor frame size 140 use carbon ceramic mechanical seals.

注意：配置尺寸140电机机架的泵装置采用碳化陶瓷机械密封。