Piston is solid aluminum alloy that is strong and lightweight.
活塞是固态铝合金，而且牢固轻便。
2
The electrical conductivity of Beijing dolomite and limestone has been studied by means of a high pressure apparatus of solid medium piston cylinder type.
利用固体介质活塞圆筒式高压容器测量白云岩与石灰岩的电导率。
3
The solid aluminum alloy piston is strong and lightweight.