Thread root diameter
[化] 螺纹内径; 螺纹底径
🧩 词语组成解析
thread
[θrɛd]
n. 线;线索;线状物;螺纹;
vt. 穿成串;将（针、线等）穿过…;用…线缝;给…装入（胶片、狭带、绳子）;
root
[rut]
n. 根，根源;原因，本质;祖先;[乐]和弦基音;
vt. 使生根;使固定;根源在于;欢呼，喝彩;
vi. 生根;根除;
🗣️ 情景例句
Thanks. Could you point me in the right direction?
谢谢。您能告诉我要往哪里走吗？
I cannot be your friend and your flatterer too.
我不能既是你的朋友，而又对你阿谀奉承。
We would like a cup of tea, a bottle of orange, and four cakes, please.
请给我们来一杯茶，一瓶橙汁，和四块蛋糕。