Packing: Packing contains corrosion inhibitor to avoid stem pitting.
填料：填料内含防腐剂，避免锈蚀阀杆。
Mild strain cross protection (MSCP) is the most effective method to control the stem pitting tristeza virus.
应用弱毒系交叉保护（MSCP）是防治茎陷点型柑橘衰退病的有效方法之一。
Packing : packing contains corrosion inhibitor to avoid stem pitting . stuffing box is deep , assuring long packing life.
填料：填料内含防腐剂，避免锈蚀阀杆。深度填料函确保较长的填料使用寿命。
The most threatening grape virosises in China are grapevine fan leaf disease, grapevine leaf roll, grapevine stem pitting and grapevine corky bark.
我国葡萄最具威胁性的病毒病有扇叶病、卷叶病、茎痘病和栓皮病。
The most threatening grape virosises in China are grapevine fan leaf disease, grapevine leaf roll, grapevine stem pitting and grapevine corky bark.
我国葡萄最具威胁性的病毒病有扇叶病、卷叶病、茎痘病和栓皮病。
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