SL301 is complete seals type and no need to dedust and exhaust.
主要特点1 . SL301为全密封式，无需排风除尘。
The hope is that you can find a tip type that feels comfortable for long hours and still seals your ear.
这样设计的目的是希望你能找到能封住耳朵，而且戴很长时间耳朵也不会痛的耳塞。
Rubber type of seals must comply with the prescribed grease.
密封件橡胶的类型必须符合油脂的规定。
This type of seal generally is of elastomeric lip seals.
这种类型的密封通常属于弹性唇密封。
The tube seals are compression type and reusable.
管密封压缩类型和可重复使用。
The design features of HOWDEN VNT type stationary sealed air preheater, such as stationary seal system, double seals, driven system and bearings etc. are described.
介绍HOWDENVNT型固定密封空气预热器的设计特点，如固定式密封系统、双重密封、驱动系统和轴承等。
Based on the test data published for leaking steam flow rates of brush type seals, determined was the permeability coefficient of the porous medium of the bristle pack.
根据发表的刷式密封泄漏量试验数据，确定了刷丝束多孔介质的渗透率系数。
Cartridge type air and oil seals-seal air is injected into the oil seal and is vented to atmosphere between the seals.
套筒式气封和油封总成，油封之间通密封空气， 油封与气封之间有一通大气的腔室。
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。
A new type of high pressure hermetic sealing structure suitable for the situation of non-easydisassembling to change seals is instucted.
介绍了一种适用于不易拆装更换密封的场合下的新型高压密封结构。
Tube end seals are compression type and reusable.
管端密封压缩类型和可重复使用。
Tube end seals are compression type and reusable.
管端密封压缩类型和可重复使用。
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